I think I have a pretty unique issue. I am getting the error "Unable to browse music" when trying to play a playlist I created with mostly music I own in Amazon Music. What's even stranger is the playlist plays fine directly from the Amazon Music app. I only have the issue when I try to play it via Sonos.
I signed out of Amazon. I refreshed my library. I removed Amazon and readers the service and nothing works. I really hate to rebuild this playlist. All my other playlists work fine. I submitted diagnostics too, # 690578130
Appreciate any insight and help. Thanks!