Does it always fail for bluez-alsa? (i.e. would it fail if you try to remove it right after starting muon?) If not please file a new bug because what you are seeing is the cache getting confused.
Does it always fail for bluez-alsa? (i.e. would it fail if you try to remove it right after starting muon?) If not please file a new bug because what you are seeing is the cache getting confused.