Lost count of amount of times I’ve deleted speakers and rooms. When it works, (50% of the time) Musicast is great. The other 50% it forgets speakers (have to “un-stereo” them, then re-stereo the pair to make both work again) This is soooo boring now. Days will go by with perfect operation. Then it will suddenly forget a speaker, and round the app we go again. Don’t even have the time to go into the linking of rooms that it also forgets, just as frustrating. Alexa also has the same problem. One day she will operate with no problem. Then suddenly she “cannot find a room called kitchen”. Obviously it is this app. Things just get “lost” in it. It’s 2020, Yamaha. Sort it, please. 2022 update….Things still no better. In fact THEY ARE WORSE!!!!!! Latest update resulted in rooms not linking. Stereo setups lost, speakers not found. Deleted and re-found speakers. Guess what this app is still driving me mad. Save your sanity. Use another app (as a last resort, I am about to delete the Yamaha app completely, and load it again) This will waste hours of my time (AGAIN!) Aaaaaaaaaaaaaaaaaah!!!!