Audio output switches to TV speakers often
The audio output on two separate televisions with two separate 4K Apple TV devices will disconnect from their audio output and revert to the television. Both Apple TVs are up to date. Both televisions have been manufactured in the last three years. One television is using a new Sonos surround sound setup which have been paired correctly (2 Play Ones, 1 Playbar, 1 Sub). The other television is using a HomePod.
I was attributing this to my living room tv but it started occurring once I added the HomePod to my bedroom tv. I've seen older discussions but none of them have provided me with solutions. Please help! I use both devices for work and it's very frustrating and disruptive. Thanks!
Apple TV 4K, tvOS 14