I saw a similar post on this issue, but it was closed without any suggested resolution.  

Last summer, based on reports that the new Sonos app was a dumpster fire, I had held off installing the update for a couple of months until my Sonos system “helpfully” advised me that some of my speakers would not play until I “upgraded” the app.

So, I moved forward with the update.  Luckily, some of the issues (alarms and timers particularly) had been resolved by that time.  But, with the Sonos app on my iOS devices (iPhone and iPad), I can only see a handful of the 100+ Spotify playlists I have.  

99% of my use of Sonos is with Spotify.  So, I would really like to see a solution to this issue (and saying “just use the app on your laptop” is not a solution).  

Thank you.