I think I’m having this issue. I posted here last December and included the logs and further testing shows that this is only happening on the Apple TV that uses the paired HomePods. If I turn on the old audio engine on that Apple TV I don’t have audio problems with Plex and I don’t have audio problems on the Apple TV that uses the HDMI connected Sony speakers. Both Apple TVs are on TVOS 17.3 and Plex Player 8.31.
