Total cross-post, but for those browsing by thread: try adjusting your PROJ / MIDI / CONTROL / AUDIO CC OUT to INT or INT+EXT. @julien1 discovered this in this post.
I just tried setting mine to EXT, then power cycled, and I got no audio, and the knobs didn’t do anything in audio tracks (presumably because they’re not sending to INT any more, like I requested ;))
The no audio is a surprise side effect!