My system upgraded to Sonos Version 16.0 build 77449290 issues.
Since then ….
- … adding multiple rooms when playing music is very slow it takes sometimes up to a minute when adding more then one room at once. music is jumping in and out due to reconnecting,
- … on the iOS app selecting a room and confirm the selection results into nothing. When open the dialog again, the selection I did before did not get acknowledged and is gone.
I never had this issue with the 15.x versions. It is again a new issue. Please test your firmware before releasing it.