I had the no audio issue once. It “fixed” itself after I shut down my deck, connected it via a different dock I have lying around from my switch, rebooted and switched over to the original dock again.

Don’t ask me why, I guess somewhere something “remembered” a wrong audio adapter or something and was forced to reset with the other dock.

Or it might be I had a cable not properly set and got it right when plugging back in.

I also frequently have an issue where I get no signal at all to the TV when waking up the deck, and that’s usually only fixed by rebooting the deck. Which I have to do blind or unplug it, because the deck knows it’s in TV mode, the TV just apparently doesn’t.