I have a Play:1 stereo pair that has stopped working when a new One SL is powered on and I’m playing to “everywhere.” When I do this, the Sonos app on all devices reports that the stereo pair is playing, but there is no audio on the stereo pair. While music is playing to all other speakers, I can play different music to the stereo pair, but I cannot play the same music everywhere unless I unpair the two speakers. if I unpair the two speakers, they work fine.

This problem goes away for a while if I power down the SL, get music started everywhere, then power up the SL. When I perform this process, music stops at all speakers and the app loses contact with the Sonos cluster for a while before I can get music going.  The pair works for a few hours after I do this.

I have filed diagnostic report 1008105106 because wow, fascinating….