MAVLink Manual Control code not working

Hi, we ran the example code given in the Pymavlink section of the ArduSub documentation for Manual control for our BlueROV2. However, upon executing the script, nothing happens. The sample code for heartbeat and moving the camera gimbal both work, but it seems like we aren’t able to get the motor working. Any help would be appreciated. Thanks.

Hi, Nil! Could you solve this problem?

Have you tried changing the flight mode to guided?