[PROBLEM] USB Volume Knob breaks output

[fixjunk]

Do you what these two audio devices are?

20240311 182926 worker: ALSA cards:   0:b1 | 1:Headphones | 2:AudioHIGH | 3:AudioMID

A USB volume knob should not be registering itself as 2 audio devices.

If you look at the linked post in my intro thread, those are my USB DAC devices. I'm using CamillaDSP to send two stereo channels to a four channel amplifier. That part works fine.

They output sound as expected and digital volume control works as expected as well. It's only when I plug in the USB knob that things go bad.