I upgraded to Controller version 5.2. My Pandora account promptly ceased working; selecting it from the list of sources yielded a "spinner" and then an error. I removed the account and attempted to re-add it. I get a "Connection Error" saying that a connection to Pandora Radio could not be made.
My expensive Sonos system is now completely unusable. I have power-cycled the the Play3, the Play5 and the Bridge. I cannot connect to my Pandora account.