Hi,
Thanks for your reply!
We were facing some other issues with the Jetson (I put it as an answer to this question) so we replaced it with the Jetson from last year.
We found out the that the AVR-GUI was sending commands to servo 3, but there was no movement in the servo. We had servos connected to other ports too, so we manually published messages to the MQTT server port 0, and it moved one of the servos. We did not test whether the servo at port 3 is faulty or what is the reason for the servo not moving, but I think we will be trying some stuff today. We also didn’t get to test the laser but I think we will be trying that today. I will send an update afterward, and thank you for all your help!