Still waiting to see if anyone cares
This article is for PlayIt Live but will apply for PlayIt Recorder. See the section at the end regarding exclusive audio https://support.playitsoftware.com/support/solutions/articles/5000866737-audio-troubleshooting-guide#:~:text=Un%2Dtick%20Allow%20applications%20to%20take%20exclusive%20control%20of%20this%20device
The last part about exclusive control, might have solved the issue, thank you.
It
Using a USB audio stream from a Mackie Board VLZ4 to input to recorder.
When running Playit Recorder, VLC loses audio output. I have to shut off and reboot to solve. How can I fix this issue?