Pixhawk not getting Mavlink messages from Odroid H2+

Hello! I am a beginner here so please forgive the simple question. I am trying to get an Odroid H2+ companion computer to communicate with my Pixhawk using MAVROS.

I am running a VIO launch file that uses the Intel T265 camera and automatically launches a MAVROS bridge (https://docs.px4.io/master/en/computer_vision/visual_inertial_odometry.html). The Odroid is connected to Telem2 of the Pixhawk using a 5V FTDI cable seen here: https://www.digikey.com/en/products/detail/ftdi-future-technology-devices-international-ltd/TTL-234X-5V/6823719. It is possible I could have made an error when making the connection but I believe this is all correct based on the information found here: https://docs.px4.io/master/en/companion_computer/pixhawk_companion.html.

I am using the MAVLINK inspector within QGroundControl to monitor incoming messages but I never receive anything from the Odroid/camera. When I run the launch file, it correctly detects the Intel camera and starts MAVROS but I never receive any messages. Is there something wrong with the cable/wiring I used? Any thoughts help! Thank you!