Hi,
Please refer to the steps in Jetson AGX Orin FAQ
Q: I have a USB camera. How can I launch it on Jetson Nano?
To launch the cameras in gst-launch-1.0 commands. And the please use fpsdisplaysink to print out the frame rate:
... ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 -v
And try 2 sources, 3 sources, 4 sources to check the frame rate. Would like to know how many sources are launched when the issue occurs.