Roslaunch px4 mavros_posix_sitl.launch publish nothing but separately roslaunch empty.world and mavros_posix_sitl.launch work

In Ubuntu 20.04 noetic, why does the gazebo simulation suddenly cannot take off by offboard script.
The mavros_posix_sitl.launch get stuck in the WP: mission received. it should show green word “read to fly” in the next line.


but it actually shows

The offboard python script errors show the code gets stuck in
landed state changed from MAV_LANDED_STATE_UNDEFINED to MAV_LANDED_STATE_ON_GROUND

and shows the error ‘global_pos’: False,

and then I found it does not publish any topic

However, if I separate launch the empty_world.launch and “mavros_posix_sitl.launch”

for example
First launch , according to PX4 gazebo simulation

roslaunch gazebo_ros empty_world.launch world_name:=$(pwd)/Tools/simulation/gazebo-classic/sitl_gazebo-classic/worlds/empty.world

Second launch

roslaunch px4 mavros_posix_sitl.launch

Then there is no issue, all mavros can publish

There is the log when roslaunch px4 mavros_posix_sitl.launch with gazebo environment.
(do not publish any mavros topic)

roslaunch px4 mavros_posix_sitl.launch
... logging to /home/zihan/.ros/log/420e0658-316c-11ee-bbd4-e3c10b91f6a5/roslaunch-Labcomp-56040.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://Labcomp:45069/

SUMMARY
========

CLEAR PARAMETERS
 * /mavros/

PARAMETERS
 * /gazebo/enable_ros_network: True
 * /mavros/camera/frame_id: base_link
 * /mavros/cmd/use_comp_id_system_control: False
 * /mavros/conn/heartbeat_rate: 1.0
 * /mavros/conn/system_time_rate: 1.0
 * /mavros/conn/timeout: 10.0
 * /mavros/conn/timesync_rate: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/field_of_view: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/frame_id: hrlv_ez4_sonar
 * /mavros/distance_sensor/hrlv_ez4_pub/id: 1
 * /mavros/distance_sensor/hrlv_ez4_pub/orientation: PITCH_270
 * /mavros/distance_sensor/hrlv_ez4_pub/send_tf: True
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/laser_1_sub/id: 3
 * /mavros/distance_sensor/laser_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/laser_1_sub/subscriber: True
 * /mavros/distance_sensor/lidarlite_pub/field_of_view: 0.0
 * /mavros/distance_sensor/lidarlite_pub/frame_id: lidarlite_laser
 * /mavros/distance_sensor/lidarlite_pub/id: 0
 * /mavros/distance_sensor/lidarlite_pub/orientation: PITCH_270
 * /mavros/distance_sensor/lidarlite_pub/send_tf: True
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/sonar_1_sub/horizontal_fov_ratio: 1.0
 * /mavros/distance_sensor/sonar_1_sub/id: 2
 * /mavros/distance_sensor/sonar_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/sonar_1_sub/subscriber: True
 * /mavros/distance_sensor/sonar_1_sub/vertical_fov_ratio: 1.0
 * /mavros/fake_gps/eph: 2.0
 * /mavros/fake_gps/epv: 2.0
 * /mavros/fake_gps/fix_type: 3
 * /mavros/fake_gps/geo_origin/alt: 408.0
 * /mavros/fake_gps/geo_origin/lat: 47.3667
 * /mavros/fake_gps/geo_origin/lon: 8.55
 * /mavros/fake_gps/gps_rate: 5.0
 * /mavros/fake_gps/mocap_transform: True
 * /mavros/fake_gps/satellites_visible: 5
 * /mavros/fake_gps/tf/child_frame_id: fix
 * /mavros/fake_gps/tf/frame_id: map
 * /mavros/fake_gps/tf/listen: False
 * /mavros/fake_gps/tf/rate_limit: 10.0
 * /mavros/fake_gps/tf/send: False
 * /mavros/fake_gps/use_mocap: True
 * /mavros/fake_gps/use_vision: False
 * /mavros/fcu_protocol: v2.0
 * /mavros/fcu_url: udp://:14540@loca...
 * /mavros/gcs_url: 
 * /mavros/global_position/child_frame_id: base_link
 * /mavros/global_position/frame_id: map
 * /mavros/global_position/gps_uere: 1.0
 * /mavros/global_position/rot_covariance: 99999.0
 * /mavros/global_position/tf/child_frame_id: base_link
 * /mavros/global_position/tf/frame_id: map
 * /mavros/global_position/tf/global_frame_id: earth
 * /mavros/global_position/tf/send: False
 * /mavros/global_position/use_relative_alt: True
 * /mavros/image/frame_id: px4flow
 * /mavros/imu/angular_velocity_stdev: 0.0003490659 // 0...
 * /mavros/imu/frame_id: base_link
 * /mavros/imu/linear_acceleration_stdev: 0.0003
 * /mavros/imu/magnetic_stdev: 0.0
 * /mavros/imu/orientation_stdev: 1.0
 * /mavros/landing_target/camera/fov_x: 2.0071286398
 * /mavros/landing_target/camera/fov_y: 2.0071286398
 * /mavros/landing_target/image/height: 480
 * /mavros/landing_target/image/width: 640
 * /mavros/landing_target/land_target_type: VISION_FIDUCIAL
 * /mavros/landing_target/listen_lt: False
 * /mavros/landing_target/mav_frame: LOCAL_NED
 * /mavros/landing_target/target_size/x: 0.3
 * /mavros/landing_target/target_size/y: 0.3
 * /mavros/landing_target/tf/child_frame_id: camera_center
 * /mavros/landing_target/tf/frame_id: landing_target
 * /mavros/landing_target/tf/listen: False
 * /mavros/landing_target/tf/rate_limit: 10.0
 * /mavros/landing_target/tf/send: True
 * /mavros/local_position/frame_id: map
 * /mavros/local_position/tf/child_frame_id: base_link
 * /mavros/local_position/tf/frame_id: map
 * /mavros/local_position/tf/send: False
 * /mavros/local_position/tf/send_fcu: False
 * /mavros/mission/pull_after_gcs: True
 * /mavros/mission/use_mission_item_int: True
 * /mavros/mocap/use_pose: True
 * /mavros/mocap/use_tf: False
 * /mavros/mount/debounce_s: 4.0
 * /mavros/mount/err_threshold_deg: 10.0
 * /mavros/mount/negate_measured_pitch: False
 * /mavros/mount/negate_measured_roll: False
 * /mavros/mount/negate_measured_yaw: False
 * /mavros/odometry/fcu/odom_child_id_des: base_link
 * /mavros/odometry/fcu/odom_parent_id_des: map
 * /mavros/plugin_blacklist: ['safety_area', '...
 * /mavros/plugin_whitelist: []
 * /mavros/px4flow/frame_id: px4flow
 * /mavros/px4flow/ranger_fov: 0.118682
 * /mavros/px4flow/ranger_max_range: 5.0
 * /mavros/px4flow/ranger_min_range: 0.3
 * /mavros/safety_area/p1/x: 1.0
 * /mavros/safety_area/p1/y: 1.0
 * /mavros/safety_area/p1/z: 1.0
 * /mavros/safety_area/p2/x: -1.0
 * /mavros/safety_area/p2/y: -1.0
 * /mavros/safety_area/p2/z: -1.0
 * /mavros/setpoint_accel/send_force: False
 * /mavros/setpoint_attitude/reverse_thrust: False
 * /mavros/setpoint_attitude/tf/child_frame_id: target_attitude
 * /mavros/setpoint_attitude/tf/frame_id: map
 * /mavros/setpoint_attitude/tf/listen: False
 * /mavros/setpoint_attitude/tf/rate_limit: 50.0
 * /mavros/setpoint_attitude/use_quaternion: False
 * /mavros/setpoint_position/mav_frame: LOCAL_NED
 * /mavros/setpoint_position/tf/child_frame_id: target_position
 * /mavros/setpoint_position/tf/frame_id: map
 * /mavros/setpoint_position/tf/listen: False
 * /mavros/setpoint_position/tf/rate_limit: 50.0
 * /mavros/setpoint_raw/thrust_scaling: 1.0
 * /mavros/setpoint_velocity/mav_frame: LOCAL_NED
 * /mavros/startup_px4_usb_quirk: False
 * /mavros/sys/disable_diag: False
 * /mavros/sys/min_voltage: 10.0
 * /mavros/target_component_id: 1
 * /mavros/target_system_id: 1
 * /mavros/tdr_radio/low_rssi: 40
 * /mavros/time/time_ref_source: fcu
 * /mavros/time/timesync_avg_alpha: 0.6
 * /mavros/time/timesync_mode: MAVLINK
 * /mavros/vibration/frame_id: base_link
 * /mavros/vision_pose/tf/child_frame_id: vision_estimate
 * /mavros/vision_pose/tf/frame_id: odom
 * /mavros/vision_pose/tf/listen: False
 * /mavros/vision_pose/tf/rate_limit: 10.0
 * /mavros/vision_speed/listen_twist: True
 * /mavros/vision_speed/twist_cov: True
 * /mavros/wheel_odometry/child_frame_id: base_link
 * /mavros/wheel_odometry/count: 2
 * /mavros/wheel_odometry/frame_id: odom
 * /mavros/wheel_odometry/send_raw: True
 * /mavros/wheel_odometry/send_twist: False
 * /mavros/wheel_odometry/tf/child_frame_id: base_link
 * /mavros/wheel_odometry/tf/frame_id: odom
 * /mavros/wheel_odometry/tf/send: False
 * /mavros/wheel_odometry/use_rpm: False
 * /mavros/wheel_odometry/vel_error: 0.1
 * /mavros/wheel_odometry/wheel0/radius: 0.05
 * /mavros/wheel_odometry/wheel0/x: 0.0
 * /mavros/wheel_odometry/wheel0/y: -0.15
 * /mavros/wheel_odometry/wheel1/radius: 0.05
 * /mavros/wheel_odometry/wheel1/x: 0.0
 * /mavros/wheel_odometry/wheel1/y: 0.15
 * /rosdistro: noetic
 * /rosversion: 1.16.0
 * /tf_prefix: iris_tf
 * /use_sim_time: True

NODES
  /
    gazebo (gazebo_ros/gzserver)
    gazebo_gui (gazebo_ros/gzclient)
    mavros (mavros/mavros_node)
    sitl (px4/px4)
    vehicle_spawn_Labcomp_56040_2477356088420129964 (gazebo_ros/spawn_model)

auto-starting new master
process[master]: started with pid [56059]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 420e0658-316c-11ee-bbd4-e3c10b91f6a5
process[rosout-1]: started with pid [56080]
started core service [/rosout]
process[sitl-2]: started with pid [56088]

______  __   __    ___ 
| ___ \ \ \ / /   /   |
| |_/ /  \ V /   / /| |
|  __/   /   \  / /_| |
| |     / /^\ \ \___  |
\_|     \/   \/     |_/

px4 starting.

INFO  [px4] startup script: /bin/sh etc/init.d-posix/rcS 0
process[gazebo-3]: started with pid [56099]
INFO  [init] found model autostart file as SYS_AUTOSTART=10015
process[gazebo_gui-4]: started with pid [56110]
INFO  [param] selected parameter default file parameters.bson
INFO  [param] importing from 'parameters.bson'
INFO  [parameters] BSON document size 274 bytes, decoded 274 bytes (INT32:11, FLOAT:3)
INFO  [param] selected parameter backup file parameters_backup.bson
process[vehicle_spawn_Labcomp_56040_2477356088420129964-5]: started with pid [56121]
process[mavros-6]: started with pid [56128]
[ INFO] [1691005153.810005255]: FCU URL: udp://:14540@localhost:14557
[ INFO] [1691005153.813378674]: udp0: Bind address: 0.0.0.0:14540
[ INFO] [1691005153.813494717]: udp0: Remote address: 127.0.0.1:14557
[ INFO] [1691005153.813674285]: GCS bridge disabled
INFO  [dataman] data manager file './dataman' size is 7866640 bytes
[ INFO] [1691005153.825177750]: Plugin 3dr_radio loaded
[ INFO] [1691005153.826788882]: Plugin 3dr_radio initialized
[ INFO] [1691005153.826946353]: Plugin actuator_control loaded
[ INFO] [1691005153.829719266]: Plugin actuator_control initialized
etc/init.d-posix/rcS: 39: [: Illegal number: 
INFO  [init] PX4_SIM_HOSTNAME: localhost
INFO  [simulator_mavlink] Waiting for simulator to accept connection on TCP port 4560
[ INFO] [1691005153.835080167]: Plugin adsb loaded
[ INFO] [1691005153.838069704]: Plugin adsb initialized
[ INFO] [1691005153.838254326]: Plugin altitude loaded
[ INFO] [1691005153.839291611]: Plugin altitude initialized
[ INFO] [1691005153.839461054]: Plugin cam_imu_sync loaded
[ INFO] [1691005153.840318395]: Plugin cam_imu_sync initialized
[ INFO] [1691005153.840487114]: Plugin camera loaded
[ INFO] [1691005153.841252873]: Plugin camera initialized
[ INFO] [1691005153.841437250]: Plugin cellular_status loaded
[ INFO] [1691005153.843755082]: Plugin cellular_status initialized
[ INFO] [1691005153.843976090]: Plugin command loaded
[ INFO] [1691005153.849687820]: Plugin command initialized
[ INFO] [1691005153.849848111]: Plugin companion_process_status loaded
[ INFO] [1691005153.851178812]: Plugin companion_process_status initialized
[ INFO] [1691005153.851296730]: Plugin debug_value loaded
[ INFO] [1691005153.854270819]: Plugin debug_value initialized
[ INFO] [1691005153.854423832]: Plugin distance_sensor loaded
[ INFO] [1691005153.867246668]: Plugin distance_sensor initialized
[ INFO] [1691005153.867433900]: Plugin esc_status loaded
[ INFO] [1691005153.868340311]: Plugin esc_status initialized
[ INFO] [1691005153.868499095]: Plugin esc_telemetry loaded
[ INFO] [1691005153.869129596]: Plugin esc_telemetry initialized
[ INFO] [1691005153.869299825]: Plugin fake_gps loaded
[ INFO] [1691005153.879074523]: Plugin fake_gps initialized
[ INFO] [1691005153.879319066]: Plugin ftp loaded
[ INFO] [1691005153.884608481]: Plugin ftp initialized
[ INFO] [1691005153.884812302]: Plugin geofence loaded
[ INFO] [1691005153.887534175]: Plugin geofence initialized
[ INFO] [1691005153.887695419]: Plugin global_position loaded
[ INFO] [1691005153.897714275]: Plugin global_position initialized
[ INFO] [1691005153.897875913]: Plugin gps_input loaded
[ INFO] [1691005153.899286489]: Plugin gps_input initialized
[ INFO] [1691005153.899403918]: Plugin gps_rtk loaded
[ INFO] [1691005153.901269262]: Plugin gps_rtk initialized
[ INFO] [1691005153.901410080]: Plugin gps_status loaded
[ INFO] [1691005153.902857558]: Plugin gps_status initialized
[ INFO] [1691005153.903037481]: Plugin guided_target loaded
[ INFO] [1691005153.905524474]: Plugin guided_target initialized
[ INFO] [1691005153.905716271]: Plugin hil loaded
[ INFO] [1691005153.913212048]: Plugin hil initialized
[ INFO] [1691005153.913338567]: Plugin home_position loaded
[ INFO] [1691005153.915414456]: Plugin home_position initialized
[ INFO] [1691005153.915588198]: Plugin imu loaded
[ INFO] [1691005153.920538523]: Plugin imu initialized
[ INFO] [1691005153.920651452]: Plugin landing_target loaded
[ INFO] [1691005153.928176546]: Plugin landing_target initialized
[ INFO] [1691005153.928315831]: Plugin local_position loaded
[ INFO] [1691005153.931828197]: Plugin local_position initialized
[ INFO] [1691005153.931945941]: Plugin log_transfer loaded
[ INFO] [1691005153.934292064]: Plugin log_transfer initialized
[ INFO] [1691005153.934413227]: Plugin mag_calibration_status loaded
[ INFO] [1691005153.935149031]: Plugin mag_calibration_status initialized
[ INFO] [1691005153.935265363]: Plugin manual_control loaded
[ INFO] [1691005153.937201098]: Plugin manual_control initialized
[ INFO] [1691005153.937403816]: Plugin mocap_pose_estimate loaded
[ INFO] [1691005153.939578894]: Plugin mocap_pose_estimate initialized
[ INFO] [1691005153.939816031]: Plugin mount_control loaded
[ WARN] [1691005153.943301957]: Could not retrive negate_measured_roll parameter value, using default (0)
[ WARN] [1691005153.943491119]: Could not retrive negate_measured_pitch parameter value, using default (0)
[ WARN] [1691005153.943708041]: Could not retrive negate_measured_yaw parameter value, using default (0)
[ WARN] [1691005153.944441440]: Could not retrive debounce_s parameter value, using default (4.000000)
[ WARN] [1691005153.944655099]: Could not retrive err_threshold_deg parameter value, using default (10.000000)
[ INFO] [1691005153.944701439]: Plugin mount_control initialized
[ INFO] [1691005153.944805051]: Plugin nav_controller_output loaded
[ INFO] [1691005153.945189512]: Plugin nav_controller_output initialized
[ INFO] [1691005153.945262101]: Plugin obstacle_distance loaded
[ INFO] [1691005153.946717750]: Plugin obstacle_distance initialized
[ INFO] [1691005153.946863004]: Plugin odom loaded
[ INFO] [1691005153.949572110]: Plugin odom initialized
[ INFO] [1691005153.949707128]: Plugin onboard_computer_status loaded
[ INFO] [1691005153.950952932]: Plugin onboard_computer_status initialized
[ INFO] [1691005153.951144849]: Plugin param loaded
[ INFO] [1691005153.953245906]: Plugin param initialized
[ INFO] [1691005153.953398730]: Plugin play_tune loaded
[ INFO] [1691005153.954898030]: Plugin play_tune initialized
[ INFO] [1691005153.955027560]: Plugin px4flow loaded
[ INFO] [1691005153.958545329]: Plugin px4flow initialized
[ INFO] [1691005153.958718758]: Plugin rallypoint loaded
[ INFO] [1691005153.960315170]: Plugin rallypoint initialized
[ INFO] [1691005153.960468601]: Plugin rangefinder loaded
[ INFO] [1691005153.960887309]: Plugin rangefinder initialized
[ INFO] [1691005153.961080673]: Plugin rc_io loaded
[ INFO] [1691005153.963150342]: Plugin rc_io initialized
[ INFO] [1691005153.963191801]: Plugin safety_area blacklisted
[ INFO] [1691005153.963344122]: Plugin setpoint_accel loaded
[ INFO] [1691005153.964963017]: Plugin setpoint_accel initialized
[ INFO] [1691005153.965221424]: Plugin setpoint_attitude loaded
[ INFO] [1691005153.971622678]: Plugin setpoint_attitude initialized
[ INFO] [1691005153.971831175]: Plugin setpoint_position loaded
[ INFO] [1691005153.981743414]: Plugin setpoint_position initialized
[ INFO] [1691005153.981923001]: Plugin setpoint_raw loaded
[ INFO] [1691005153.987164007]: Plugin setpoint_raw initialized
[ INFO] [1691005153.987349985]: Plugin setpoint_trajectory loaded
[ INFO] [1691005153.989968700]: Plugin setpoint_trajectory initialized
[ INFO] [1691005153.990140369]: Plugin setpoint_velocity loaded
[ INFO] [1691005153.993167975]: Plugin setpoint_velocity initialized
[ INFO] [1691005153.993553268]: Plugin sys_status loaded
[ INFO] [1691005154.001254604]: Plugin sys_status initialized
[ INFO] [1691005154.001458978]: Plugin sys_time loaded
[ INFO] [1691005154.004847915]: TM: Timesync mode: MAVLINK
[ INFO] [1691005154.005096980]: TM: Not publishing sim time
[ INFO] [1691005154.005808523]: Plugin sys_time initialized
[ INFO] [1691005154.005937274]: Plugin terrain loaded
[ INFO] [1691005154.006381283]: Plugin terrain initialized
[ INFO] [1691005154.006473628]: Plugin trajectory loaded
[ INFO] [1691005154.009690149]: Plugin trajectory initialized
[ INFO] [1691005154.009811346]: Plugin tunnel loaded
[ INFO] [1691005154.011349749]: Plugin tunnel initialized
[ INFO] [1691005154.011461568]: Plugin vfr_hud loaded
[ INFO] [1691005154.011828728]: Plugin vfr_hud initialized
[ INFO] [1691005154.011851004]: Plugin vibration blacklisted
[ INFO] [1691005154.011956902]: Plugin vision_pose_estimate loaded
[ INFO] [1691005154.015833964]: Plugin vision_pose_estimate initialized
[ INFO] [1691005154.015952216]: Plugin vision_speed_estimate loaded
[ INFO] [1691005154.018047346]: Plugin vision_speed_estimate initialized
[ INFO] [1691005154.018186875]: Plugin waypoint loaded
[ INFO] [1691005154.020805452]: Plugin waypoint initialized
[ INFO] [1691005154.020840732]: Plugin wheel_odometry blacklisted
[ INFO] [1691005154.020991773]: Plugin wind_estimation loaded
[ INFO] [1691005154.021527544]: Plugin wind_estimation initialized
[ INFO] [1691005154.021694220]: Built-in SIMD instructions: SSE, SSE2
[ INFO] [1691005154.021712256]: Built-in MAVLink package version: 2023.6.6
[ INFO] [1691005154.021733526]: Known MAVLink dialects: common ardupilotmega ASLUAV AVSSUAS all csAirLink cubepilot development icarous matrixpilot paparazzi standard storm32 uAvionix ualberta
[ INFO] [1691005154.021751318]: MAVROS started. MY ID 1.240, TARGET ID 1.1
[INFO] [1691005154.079991, 0.000000]: Loading model XML from file /home/zihan/PX4-Autopilot/Tools/simulation/gazebo-classic/sitl_gazebo-classic/models/iris/iris.sdf
[INFO] [1691005154.084317, 0.000000]: Waiting for service /gazebo/spawn_sdf_model
[ INFO] [1691005154.269889647]: Finished loading Gazebo ROS API Plugin.
[ INFO] [1691005154.270679662]: waitForService: Service [/gazebo_gui/set_physics_properties] has not been advertised, waiting...
[ INFO] [1691005154.308499562]: Finished loading Gazebo ROS API Plugin.
[ INFO] [1691005154.309333846]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
[ INFO] [1691005154.801761124]: waitForService: Service [/gazebo/set_physics_properties] is now available.
[ INFO] [1691005154.815540810, 0.008000000]: Physics dynamic reconfigure ready.
[INFO] [1691005154.990254, 0.180000]: Calling service /gazebo/spawn_sdf_model
Warning [parser.cc:833] XML Attribute[version] in element[sdf] not defined in SDF, ignoring.
[INFO] [1691005155.304670, 0.376000]: Spawn status: SpawnModel: Successfully spawned entity
INFO  [simulator_mavlink] Simulator connected on TCP port 4560.
INFO  [lockstep_scheduler] setting initial absolute time to 388000 us
INFO  [commander] LED: open /dev/led0 failed (22)
INFO  [mavlink] mode: Normal, data rate: 4000000 B/s on udp port 18570 remote port 14550
INFO  [mavlink] partner IP: 127.0.0.1
INFO  [mavlink] mode: Onboard, data rate: 4000000 B/s on udp port 14580 remote port 14540
INFO  [mavlink] mode: Onboard, data rate: 4000 B/s on udp port 14280 remote port 14030
INFO  [mavlink] mode: Gimbal, data rate: 400000 B/s on udp port 13030 remote port 13280
[ INFO] [1691005155.637932666, 0.552000000]: udp0: Remote address: 127.0.0.1:14580
[ INFO] [1691005155.638161379, 0.552000000]: IMU: High resolution IMU detected!
INFO  [logger] logger started (mode=all)
INFO  [logger] Start file log (type: full)
INFO  [logger] [logger] ./log/2023-08-02/19_39_15.ulg	
INFO  [logger] Opened full log file: ./log/2023-08-02/19_39_15.ulg
INFO  [mavlink] MAVLink only on localhost (set param MAV_{i}_BROADCAST = 1 to enable network)
INFO  [mavlink] MAVLink only on localhost (set param MAV_{i}_BROADCAST = 1 to enable network)
INFO  [px4] Startup script returned successfully
pxh> INFO  [mavlink] partner IP: 127.0.0.1
[vehicle_spawn_Labcomp_56040_2477356088420129964-5] process has finished cleanly
log file: /home/zihan/.ros/log/420e0658-316c-11ee-bbd4-e3c10b91f6a5/vehicle_spawn_Labcomp_56040_2477356088420129964-5*.log
INFO  [tone_alarm] home set
[ INFO] [1691005156.620308673, 1.532000000]: CON: Got HEARTBEAT, connected. FCU: PX4 Autopilot
[ INFO] [1691005156.621682034, 1.532000000]: IMU: High resolution IMU detected!
INFO  [tone_alarm] notify negative
[ INFO] [1691005157.631736873, 2.540000000]: GF: Using MISSION_ITEM_INT
[ INFO] [1691005157.631950287, 2.540000000]: RP: Using MISSION_ITEM_INT
[ INFO] [1691005157.632097887, 2.540000000]: WP: Using MISSION_ITEM_INT
[ INFO] [1691005157.632282860, 2.540000000]: VER: 1.1: Capabilities         0x000000000000ecff
[ INFO] [1691005157.632458383, 2.540000000]: VER: 1.1: Flight software:     010e0000 (715a1ff701000000)
[ INFO] [1691005157.632582836, 2.540000000]: VER: 1.1: Middleware software: 010e0000 (715a1ff701000000)
[ INFO] [1691005157.632720685, 2.540000000]: VER: 1.1: OS software:         050f00ff (3f77354c0dc88793)
[ INFO] [1691005157.632797336, 2.540000000]: VER: 1.1: Board hardware:      00000001
[ INFO] [1691005157.632863521, 2.540000000]: VER: 1.1: VID/PID:             0000:0000
[ INFO] [1691005157.632929137, 2.540000000]: VER: 1.1: UID:                 4954414c44494e4f
[ INFO] [1691005171.637655456, 16.532000000]: GF: mission received
[ INFO] [1691005171.638085100, 16.532000000]: WP: mission received
[ INFO] [1691005171.638300786, 16.532000000]: RP: mission received

There is the log when roslaunch px4 mavros_posix_sitl.launch and roslaunch empty.world ( gazebo environment) separately.
( publish all mavros topics)

roslaunch px4 mavros_posix_sitl.launch
... logging to /home/zihan/.ros/log/7edb15d6-3170-11ee-bbd4-e3c10b91f6a5/roslaunch-Labcomp-71038.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://Labcomp:33241/

SUMMARY
========

CLEAR PARAMETERS
 * /mavros/

PARAMETERS
 * /mavros/camera/frame_id: base_link
 * /mavros/cmd/use_comp_id_system_control: False
 * /mavros/conn/heartbeat_rate: 1.0
 * /mavros/conn/system_time_rate: 1.0
 * /mavros/conn/timeout: 10.0
 * /mavros/conn/timesync_rate: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/field_of_view: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/frame_id: hrlv_ez4_sonar
 * /mavros/distance_sensor/hrlv_ez4_pub/id: 1
 * /mavros/distance_sensor/hrlv_ez4_pub/orientation: PITCH_270
 * /mavros/distance_sensor/hrlv_ez4_pub/send_tf: True
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/laser_1_sub/id: 3
 * /mavros/distance_sensor/laser_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/laser_1_sub/subscriber: True
 * /mavros/distance_sensor/lidarlite_pub/field_of_view: 0.0
 * /mavros/distance_sensor/lidarlite_pub/frame_id: lidarlite_laser
 * /mavros/distance_sensor/lidarlite_pub/id: 0
 * /mavros/distance_sensor/lidarlite_pub/orientation: PITCH_270
 * /mavros/distance_sensor/lidarlite_pub/send_tf: True
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/sonar_1_sub/horizontal_fov_ratio: 1.0
 * /mavros/distance_sensor/sonar_1_sub/id: 2
 * /mavros/distance_sensor/sonar_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/sonar_1_sub/subscriber: True
 * /mavros/distance_sensor/sonar_1_sub/vertical_fov_ratio: 1.0
 * /mavros/fake_gps/eph: 2.0
 * /mavros/fake_gps/epv: 2.0
 * /mavros/fake_gps/fix_type: 3
 * /mavros/fake_gps/geo_origin/alt: 408.0
 * /mavros/fake_gps/geo_origin/lat: 47.3667
 * /mavros/fake_gps/geo_origin/lon: 8.55
 * /mavros/fake_gps/gps_rate: 5.0
 * /mavros/fake_gps/mocap_transform: True
 * /mavros/fake_gps/satellites_visible: 5
 * /mavros/fake_gps/tf/child_frame_id: fix
 * /mavros/fake_gps/tf/frame_id: map
 * /mavros/fake_gps/tf/listen: False
 * /mavros/fake_gps/tf/rate_limit: 10.0
 * /mavros/fake_gps/tf/send: False
 * /mavros/fake_gps/use_mocap: True
 * /mavros/fake_gps/use_vision: False
 * /mavros/fcu_protocol: v2.0
 * /mavros/fcu_url: udp://:14540@loca...
 * /mavros/gcs_url: 
 * /mavros/global_position/child_frame_id: base_link
 * /mavros/global_position/frame_id: map
 * /mavros/global_position/gps_uere: 1.0
 * /mavros/global_position/rot_covariance: 99999.0
 * /mavros/global_position/tf/child_frame_id: base_link
 * /mavros/global_position/tf/frame_id: map
 * /mavros/global_position/tf/global_frame_id: earth
 * /mavros/global_position/tf/send: False
 * /mavros/global_position/use_relative_alt: True
 * /mavros/image/frame_id: px4flow
 * /mavros/imu/angular_velocity_stdev: 0.0003490659 // 0...
 * /mavros/imu/frame_id: base_link
 * /mavros/imu/linear_acceleration_stdev: 0.0003
 * /mavros/imu/magnetic_stdev: 0.0
 * /mavros/imu/orientation_stdev: 1.0
 * /mavros/landing_target/camera/fov_x: 2.0071286398
 * /mavros/landing_target/camera/fov_y: 2.0071286398
 * /mavros/landing_target/image/height: 480
 * /mavros/landing_target/image/width: 640
 * /mavros/landing_target/land_target_type: VISION_FIDUCIAL
 * /mavros/landing_target/listen_lt: False
 * /mavros/landing_target/mav_frame: LOCAL_NED
 * /mavros/landing_target/target_size/x: 0.3
 * /mavros/landing_target/target_size/y: 0.3
 * /mavros/landing_target/tf/child_frame_id: camera_center
 * /mavros/landing_target/tf/frame_id: landing_target
 * /mavros/landing_target/tf/listen: False
 * /mavros/landing_target/tf/rate_limit: 10.0
 * /mavros/landing_target/tf/send: True
 * /mavros/local_position/frame_id: map
 * /mavros/local_position/tf/child_frame_id: base_link
 * /mavros/local_position/tf/frame_id: map
 * /mavros/local_position/tf/send: False
 * /mavros/local_position/tf/send_fcu: False
 * /mavros/mission/pull_after_gcs: True
 * /mavros/mission/use_mission_item_int: True
 * /mavros/mocap/use_pose: True
 * /mavros/mocap/use_tf: False
 * /mavros/mount/debounce_s: 4.0
 * /mavros/mount/err_threshold_deg: 10.0
 * /mavros/mount/negate_measured_pitch: False
 * /mavros/mount/negate_measured_roll: False
 * /mavros/mount/negate_measured_yaw: False
 * /mavros/odometry/fcu/odom_child_id_des: base_link
 * /mavros/odometry/fcu/odom_parent_id_des: map
 * /mavros/plugin_blacklist: ['safety_area', '...
 * /mavros/plugin_whitelist: []
 * /mavros/px4flow/frame_id: px4flow
 * /mavros/px4flow/ranger_fov: 0.118682
 * /mavros/px4flow/ranger_max_range: 5.0
 * /mavros/px4flow/ranger_min_range: 0.3
 * /mavros/safety_area/p1/x: 1.0
 * /mavros/safety_area/p1/y: 1.0
 * /mavros/safety_area/p1/z: 1.0
 * /mavros/safety_area/p2/x: -1.0
 * /mavros/safety_area/p2/y: -1.0
 * /mavros/safety_area/p2/z: -1.0
 * /mavros/setpoint_accel/send_force: False
 * /mavros/setpoint_attitude/reverse_thrust: False
 * /mavros/setpoint_attitude/tf/child_frame_id: target_attitude
 * /mavros/setpoint_attitude/tf/frame_id: map
 * /mavros/setpoint_attitude/tf/listen: False
 * /mavros/setpoint_attitude/tf/rate_limit: 50.0
 * /mavros/setpoint_attitude/use_quaternion: False
 * /mavros/setpoint_position/mav_frame: LOCAL_NED
 * /mavros/setpoint_position/tf/child_frame_id: target_position
 * /mavros/setpoint_position/tf/frame_id: map
 * /mavros/setpoint_position/tf/listen: False
 * /mavros/setpoint_position/tf/rate_limit: 50.0
 * /mavros/setpoint_raw/thrust_scaling: 1.0
 * /mavros/setpoint_velocity/mav_frame: LOCAL_NED
 * /mavros/startup_px4_usb_quirk: False
 * /mavros/sys/disable_diag: False
 * /mavros/sys/min_voltage: 10.0
 * /mavros/target_component_id: 1
 * /mavros/target_system_id: 1
 * /mavros/tdr_radio/low_rssi: 40
 * /mavros/time/time_ref_source: fcu
 * /mavros/time/timesync_avg_alpha: 0.6
 * /mavros/time/timesync_mode: MAVLINK
 * /mavros/vibration/frame_id: base_link
 * /mavros/vision_pose/tf/child_frame_id: vision_estimate
 * /mavros/vision_pose/tf/frame_id: odom
 * /mavros/vision_pose/tf/listen: False
 * /mavros/vision_pose/tf/rate_limit: 10.0
 * /mavros/vision_speed/listen_twist: True
 * /mavros/vision_speed/twist_cov: True
 * /mavros/wheel_odometry/child_frame_id: base_link
 * /mavros/wheel_odometry/count: 2
 * /mavros/wheel_odometry/frame_id: odom
 * /mavros/wheel_odometry/send_raw: True
 * /mavros/wheel_odometry/send_twist: False
 * /mavros/wheel_odometry/tf/child_frame_id: base_link
 * /mavros/wheel_odometry/tf/frame_id: odom
 * /mavros/wheel_odometry/tf/send: False
 * /mavros/wheel_odometry/use_rpm: False
 * /mavros/wheel_odometry/vel_error: 0.1
 * /mavros/wheel_odometry/wheel0/radius: 0.05
 * /mavros/wheel_odometry/wheel0/x: 0.0
 * /mavros/wheel_odometry/wheel0/y: -0.15
 * /mavros/wheel_odometry/wheel1/radius: 0.05
 * /mavros/wheel_odometry/wheel1/x: 0.0
 * /mavros/wheel_odometry/wheel1/y: 0.15
 * /rosdistro: noetic
 * /rosversion: 1.16.0
 * /tf_prefix: iris_tf

NODES
  /
    mavros (mavros/mavros_node)
    sitl (px4/px4)
    vehicle_spawn_Labcomp_71038_6073523744788094353 (gazebo_ros/spawn_model)

ROS_MASTER_URI=http://localhost:11311

process[sitl-1]: started with pid [71096]

______  __   __    ___ 
| ___ \ \ \ / /   /   |
| |_/ /  \ V /   / /| |
|  __/   /   \  / /_| |
| |     / /^\ \ \___  |
\_|     \/   \/     |_/

px4 starting.

INFO  [px4] startup script: /bin/sh etc/init.d-posix/rcS 0
process[vehicle_spawn_Labcomp_71038_6073523744788094353-2]: started with pid [71107]
INFO  [init] found model autostart file as SYS_AUTOSTART=10015
INFO  [param] selected parameter default file parameters.bson
process[mavros-3]: started with pid [71115]
INFO  [param] importing from 'parameters.bson'
INFO  [parameters] BSON document size 274 bytes, decoded 274 bytes (INT32:11, FLOAT:3)
INFO  [param] selected parameter backup file parameters_backup.bson
[ INFO] [1691007806.871786435]: FCU URL: udp://:14540@localhost:14557
[ INFO] [1691007806.877794741]: udp0: Bind address: 0.0.0.0:14540
[ INFO] [1691007806.877978570]: udp0: Remote address: 127.0.0.1:14557
[ INFO] [1691007806.878217579]: GCS bridge disabled
[ INFO] [1691007806.892314028]: Plugin 3dr_radio loaded
[ INFO] [1691007806.893613679]: Plugin 3dr_radio initialized
[ INFO] [1691007806.893714202]: Plugin actuator_control loaded
[ INFO] [1691007806.896033815]: Plugin actuator_control initialized
[ INFO] [1691007806.901184526]: Plugin adsb loaded
[ INFO] [1691007806.903601716]: Plugin adsb initialized
[ INFO] [1691007806.903809152]: Plugin altitude loaded
[ INFO] [1691007806.904586848]: Plugin altitude initialized
[ INFO] [1691007806.904828916]: Plugin cam_imu_sync loaded
[ INFO] [1691007806.905359362]: Plugin cam_imu_sync initialized
[ INFO] [1691007806.905530286]: Plugin camera loaded
[ INFO] [1691007806.906102839]: Plugin camera initialized
[ INFO] [1691007806.906202122]: Plugin cellular_status loaded
[ INFO] [1691007806.908107624]: Plugin cellular_status initialized
[ INFO] [1691007806.908402572]: Plugin command loaded
INFO  [dataman] data manager file './dataman' size is 7866640 bytes
[ INFO] [1691007806.914106482]: Plugin command initialized
[ INFO] [1691007806.914221568]: Plugin companion_process_status loaded
[ INFO] [1691007806.915566037]: Plugin companion_process_status initialized
[ INFO] [1691007806.915645012]: Plugin debug_value loaded
[ INFO] [1691007806.918725383]: Plugin debug_value initialized
[ INFO] [1691007806.918843542]: Plugin distance_sensor loaded
etc/init.d-posix/rcS: 39: [: Illegal number: 
INFO  [init] PX4_SIM_HOSTNAME: localhost
INFO  [simulator_mavlink] Waiting for simulator to accept connection on TCP port 4560
[ INFO] [1691007806.931522257]: Plugin distance_sensor initialized
[ INFO] [1691007806.931754850]: Plugin esc_status loaded
[ INFO] [1691007806.932637813]: Plugin esc_status initialized
[ INFO] [1691007806.932816666]: Plugin esc_telemetry loaded
[ INFO] [1691007806.933350390]: Plugin esc_telemetry initialized
[ INFO] [1691007806.933534446]: Plugin fake_gps loaded
[ INFO] [1691007806.943566877]: Plugin fake_gps initialized
[ INFO] [1691007806.943723223]: Plugin ftp loaded
[ INFO] [1691007806.949043373]: Plugin ftp initialized
[ INFO] [1691007806.949182952]: Plugin geofence loaded
[ INFO] [1691007806.951928383]: Plugin geofence initialized
[ INFO] [1691007806.952064551]: Plugin global_position loaded
[ INFO] [1691007806.961651085]: Plugin global_position initialized
[ INFO] [1691007806.961761889]: Plugin gps_input loaded
[ INFO] [1691007806.963246279]: Plugin gps_input initialized
[ INFO] [1691007806.963330836]: Plugin gps_rtk loaded
[ INFO] [1691007806.965043760]: Plugin gps_rtk initialized
[ INFO] [1691007806.965133631]: Plugin gps_status loaded
[ INFO] [1691007806.966682976]: Plugin gps_status initialized
[ INFO] [1691007806.966780325]: Plugin guided_target loaded
[ INFO] [1691007806.969591365]: Plugin guided_target initialized
[ INFO] [1691007806.969722219]: Plugin hil loaded
[ INFO] [1691007806.977538001]: Plugin hil initialized
[ INFO] [1691007806.977666967]: Plugin home_position loaded
[ INFO] [1691007806.979653894]: Plugin home_position initialized
[ INFO] [1691007806.979807067]: Plugin imu loaded
[ INFO] [1691007806.984293859]: Plugin imu initialized
[ INFO] [1691007806.984416710]: Plugin landing_target loaded
[ INFO] [1691007806.992007960]: Plugin landing_target initialized
[ INFO] [1691007806.992188896]: Plugin local_position loaded
[ INFO] [1691007806.995859753]: Plugin local_position initialized
[ INFO] [1691007806.995998877]: Plugin log_transfer loaded
[ INFO] [1691007806.998480715]: Plugin log_transfer initialized
[ INFO] [1691007806.998684772]: Plugin mag_calibration_status loaded
[ INFO] [1691007806.999434001]: Plugin mag_calibration_status initialized
[ INFO] [1691007806.999651634]: Plugin manual_control loaded
[ INFO] [1691007807.002347156]: Plugin manual_control initialized
[ INFO] [1691007807.002482899]: Plugin mocap_pose_estimate loaded
[ INFO] [1691007807.004611100]: Plugin mocap_pose_estimate initialized
[ INFO] [1691007807.004744927]: Plugin mount_control loaded
[ WARN] [1691007807.008462793]: Could not retrive negate_measured_roll parameter value, using default (0)
[ WARN] [1691007807.008785465]: Could not retrive negate_measured_pitch parameter value, using default (0)
[ WARN] [1691007807.009117926]: Could not retrive negate_measured_yaw parameter value, using default (0)
[ WARN] [1691007807.010238481]: Could not retrive debounce_s parameter value, using default (4.000000)
[ WARN] [1691007807.010519315]: Could not retrive err_threshold_deg parameter value, using default (10.000000)
[ INFO] [1691007807.010582235]: Plugin mount_control initialized
[ INFO] [1691007807.010770014]: Plugin nav_controller_output loaded
[ INFO] [1691007807.011303492]: Plugin nav_controller_output initialized
[ INFO] [1691007807.011385074]: Plugin obstacle_distance loaded
[ INFO] [1691007807.013498044]: Plugin obstacle_distance initialized
[ INFO] [1691007807.013591570]: Plugin odom loaded
[ INFO] [1691007807.016964782]: Plugin odom initialized
[ INFO] [1691007807.017052805]: Plugin onboard_computer_status loaded
[ INFO] [1691007807.019056910]: Plugin onboard_computer_status initialized
[ INFO] [1691007807.019208224]: Plugin param loaded
[ INFO] [1691007807.021819089]: Plugin param initialized
[ INFO] [1691007807.021919087]: Plugin play_tune loaded
[ INFO] [1691007807.023796614]: Plugin play_tune initialized
[ INFO] [1691007807.023954972]: Plugin px4flow loaded
[ INFO] [1691007807.029211623]: Plugin px4flow initialized
[ INFO] [1691007807.029518011]: Plugin rallypoint loaded
[ INFO] [1691007807.032309732]: Plugin rallypoint initialized
[ INFO] [1691007807.032462807]: Plugin rangefinder loaded
[ INFO] [1691007807.033057023]: Plugin rangefinder initialized
[ INFO] [1691007807.033235289]: Plugin rc_io loaded
[ INFO] [1691007807.036539078]: Plugin rc_io initialized
[ INFO] [1691007807.036592427]: Plugin safety_area blacklisted
[ INFO] [1691007807.036839223]: Plugin setpoint_accel loaded
[ INFO] [1691007807.039295990]: Plugin setpoint_accel initialized
[ INFO] [1691007807.039651077]: Plugin setpoint_attitude loaded
[ INFO] [1691007807.046773055]: Plugin setpoint_attitude initialized
[ INFO] [1691007807.047101369]: Plugin setpoint_position loaded
[ INFO] [1691007807.057784503]: Plugin setpoint_position initialized
[ INFO] [1691007807.057928457]: Plugin setpoint_raw loaded
[ INFO] [1691007807.063858015]: Plugin setpoint_raw initialized
[ INFO] [1691007807.064118502]: Plugin setpoint_trajectory loaded
[ INFO] [1691007807.066828610]: Plugin setpoint_trajectory initialized
[ INFO] [1691007807.066957034]: Plugin setpoint_velocity loaded
[ INFO] [1691007807.069957137]: Plugin setpoint_velocity initialized
[ INFO] [1691007807.070332531]: Plugin sys_status loaded
[ INFO] [1691007807.076750767]: Plugin sys_status initialized
[ INFO] [1691007807.076908791]: Plugin sys_time loaded
[ INFO] [1691007807.079774713]: TM: Timesync mode: MAVLINK
[ INFO] [1691007807.080066312]: TM: Not publishing sim time
[ INFO] [1691007807.080930812]: Plugin sys_time initialized
[ INFO] [1691007807.081126326]: Plugin terrain loaded
[ INFO] [1691007807.081577541, 7.756000000]: Plugin terrain initialized
[ INFO] [1691007807.081757447, 7.756000000]: Plugin trajectory loaded
[ INFO] [1691007807.084588663, 7.756000000]: Plugin trajectory initialized
[ INFO] [1691007807.084685001, 7.756000000]: Plugin tunnel loaded
[ INFO] [1691007807.086416231, 7.760000000]: Plugin tunnel initialized
[ INFO] [1691007807.086661496, 7.760000000]: Plugin vfr_hud loaded
[ INFO] [1691007807.087117643, 7.760000000]: Plugin vfr_hud initialized
[ INFO] [1691007807.087154721, 7.760000000]: Plugin vibration blacklisted
[ INFO] [1691007807.087341716, 7.760000000]: Plugin vision_pose_estimate loaded
[ INFO] [1691007807.092330088, 7.764000000]: Plugin vision_pose_estimate initialized
[ INFO] [1691007807.092530854, 7.764000000]: Plugin vision_speed_estimate loaded
[ INFO] [1691007807.094513691, 7.768000000]: Plugin vision_speed_estimate initialized
[ INFO] [1691007807.094620258, 7.768000000]: Plugin waypoint loaded
[ INFO] [1691007807.097474083, 7.772000000]: Plugin waypoint initialized
[ INFO] [1691007807.097526016, 7.772000000]: Plugin wheel_odometry blacklisted
[ INFO] [1691007807.097754632, 7.772000000]: Plugin wind_estimation loaded
[ INFO] [1691007807.098196895, 7.772000000]: Plugin wind_estimation initialized
[ INFO] [1691007807.098360454, 7.772000000]: Built-in SIMD instructions: SSE, SSE2
[ INFO] [1691007807.098392139, 7.772000000]: Built-in MAVLink package version: 2023.6.6
[ INFO] [1691007807.098426770, 7.772000000]: Known MAVLink dialects: common ardupilotmega ASLUAV AVSSUAS all csAirLink cubepilot development icarous matrixpilot paparazzi standard storm32 uAvionix ualberta
[ INFO] [1691007807.098457211, 7.772000000]: MAVROS started. MY ID 1.240, TARGET ID 1.1
[INFO] [1691007807.152978, 0.000000]: Loading model XML from file /home/zihan/PX4-Autopilot/Tools/simulation/gazebo-classic/sitl_gazebo-classic/models/iris/iris.sdf
[INFO] [1691007807.158917, 0.000000]: Waiting for service /gazebo/spawn_sdf_model
[INFO] [1691007807.161885, 7.836000]: Calling service /gazebo/spawn_sdf_model
[INFO] [1691007807.821071, 8.020000]: Spawn status: SpawnModel: Successfully spawned entity
INFO  [simulator_mavlink] Simulator connected on TCP port 4560.
INFO  [lockstep_scheduler] setting initial absolute time ```

Try to add delay before spawn model but it still does not work