Original setup: LG 60UJ6300, Sonos Playbar, Sub, Apple TV 4th Gen.
With the original setup, I could control the volume of the Sonos, and not have an onscreen message. I swapped the Apple TV4th Gen with a new Apple TV 4K. I followed sonos instructions setting up the remote, etc. Now with the Apple TV 4K, when changing the volume, a grey circle with a crossed out speaker shows up on the TV screen. I have searched all over the sonos site and the LG site, and cannot find how to turn this off.
Please help if you can. I will keep searching for an answer. again, it didn't have this message when I had the ATV4th gen,