Installed the latest beta releases of TVos and Home pod OS. 27.2 (24k122)
The problem of audio cutting out whilst video keeps playing persists.
The set up is:
Mac with homeshare enabled,
MP4 video in TV app on Mac encoded with ffmpeg,
Apple tv 4k tvos 27,
tv,
Two homepods 27, in stereo pair.
Problem:
When playing a video from the mac on the tv via the appletv on the computers app the audio cuts out whilst the video keeps playing. Pausing and playing the video restores the video only for it to cut-out again and again.
Switching audio from homepods to tv speakers there is no cut-out.
Other sources play fine through the apple tv, streaming appletv, iplayer etc. The homepods work fine when watching tv with homepods using a satellite box.
This only started when the TvOS was upgraded to 27, 26 was fine.
It's not a problem with the Macs as I use two, one an old Mac pro and a new Mac mini, the problem is on both.
I don't think it's a problem with the homepods as the play music and other sources fine.
I think it's the update in TvOS from 26 to 27 that introduced the bug/problem.
I'm going to submit another feedback report with the above details again.