I had this issue, and it was resolved by replacing our OG HomePod with the new one. Now, HomeKit works much better, and we have an additional HomePod for a nice AirPlay speaker. That said, can't say I'm a fan of Eve, at least based on my Aqua timer -- worst app I have.I have this issue too... and there doesn't seem to be a way to select which Apple TV will be the home hub. guess the only hack there is to update to newer apple TV's