5 Stars for 12+yrs Suddenly late Jan Sub Audio closes app when controlling AMP. I have 2 AMP,2 SUB and many others. For me, since Jan, 3000.+ of SONOS waiting on SONOS to fix this. My patience is quickly evaporating. I call SONOS, was informed they are aware. I was told to use Apple to overcome this issue. Apple is great. I don't use Apple. 20 units operating w S1 App. Downloading S2, network at 13. Losing 2AMP/2SUB, NOW @9. Waiting on 2Roam for 2mths. When can I use my AMP(s)???