I have updated to S2 app and added a move speaker to the 3 Sonos 1s, 1 Sonos 3, play bar and sub . The S2 app keeps dropping the speakers and I can’t see them on app, they will then re appear only to be dropped again later, this is very annoying. I have a play 5 also which now operates on a S1 controller on the same WiFi network and this seems to be operating ok. Are there fixes planned to be made to the S2 controller app as it seems very unstable or should I revert all speakers back to S1 controller if that’s possible?