All of them are on the newest firmware and updated to Big Sur/IOS 14. All of them are connected under the same apple ID.
But the automatic switching works in absolutely no case. Not with youtube, not with spotify or anything else. I always have to go to bluetooth and connect manually.
Its a bit disappointing since these are all of the newest devices and i expected it to work. Does anyone have an idea how to solve it? Logging off and on the Apple ID and rebooting does nothing..