Hello @pm2662, do you have the latest Sonos app installed? 

Can you update it? 

I figured it out trial and error.   Up until latest release I was able to have over 500 playlists on Deezer and Sonos only read the first 500.  Now with latest update, if you have over 500 playlists, Sonos will NOT browse it at all.  So I have to have 2 Deezer accounts- one with 500- the other with the remainder playlists.  

Oh @pm2662, this is annoying! 

We are working with Sonos to update the app, so I will pass your feedback too. 

You won’t need to have two accounts for much longer :)