Uvcvideo: Non-zero status (-71) in video completion handler

Hi,
Please share which Jetpack release you use. The latest release is Jetpack 4.6.3 and we would suggest use the latest one. And if you use Jetson Nano developer kit, the maximum current of the 4 ports is 2A and it may not be sufficient for multiple devices. suggest you connect to external power supply. Please refer to 2.1 USB Ports in
https://developer.nvidia.com/jetson-nano-developer-kit-carrier-board-p3449-b01-specification