Hi, i’m faced with such issue: when i send mavlink_mission_item_t packet with command = MAV_CMD_WAYPOINT_USER_1 vehicle responses with MAV_MISSION_UNSUPPORTED. Why so?
I got the same problem when I try to send MAV_CMD_USER_!. do you finally solve it?
I apologize for waiting for an answer. We have it sent, but we did without it.