ATEM Constellation 4k 1 M/E

New to Blackmagic and not having much luck with getting audio from the ATEM switcher to OBS. No problems with video, and no problems with seeing audio levels on the front screen. Also, no issues with outputting the program to a specific output and having it work on a regular TV. BUT - when attempting to get audio FROM OBS through the USB-C - nothing. Is it possible I have assumed it sends audio but actually doesn't? Thanks!

After speaking with Blackmagic Technical Support, I've been told the USB will have both video and audio. My next guess is that the USB 2.0 Type-C cable was simply unable to transmit all of the data. I've purchased USB 4.0 Type-C cables and will make another attempt.