Speakers disappearing from system.  No longer visible within Sonos app nor within Spotify airplay, etc.  Yesterday, I noticed it on my Android phone. Today, its on my iphone. It’s not limited to a speaker type as it’s impacted my Play 5 Gen2’s, many Sonos One SLs, Sonos One and Move.  Still showing on Playbar and 1 one SL.  Was there a new product release?  My home lost power 6 days ago for an hour, but never had any issues in the days following.  Sonos tech, please advise.  

One other item to note, one the speakers no long showing up, actually still streams radio.