tvos 15.2 audio dropping/loss
Since 15.2 I've been losing audio both on my Apple TV 4k in general, and specifically within the my computer app streaming from my itunes server. The audio loss seems to mostly impact more recent video files, but also some older ones. I haven't yet figured out the exact common factor, but it seems to be occurring with LARGE video files predominantly, not smaller ones (mostly, but not always 4k videos, usually not 1080p videos). All are using AAC audio codecs. All dolby 5.1 encoding. On all 4 of my AppleTVs.
This was not happening in earlier versions of tvos (it POSSIBLE it was happening in 15.1 and I just missed it, certainly not happening in 15.0).
On top of that, since 15.1 and a lot in 15.2, the audio will just plain not work on my AppleTV until I've restarted it or power cycled it. Sometimes it takes a couple of tries. Usually it is that it doesn't work after waking up my AppleTV, not that all of the audio dies in the middle of something.
It is getting really frustrating. Especially the audio in movies dropping out. Pausing it and resuming fixes the audio (as does exciting and going back in, or fast forwarding and rewinding/scrubbing). However, the audio will drop again anywhere from about 30 seconds up to maybe 5 minutes later. It makes things basically unwatchable.