Leave the Spotify curated playlists alone! Constantly refreshes the playlist because they add and take songs away. It's annoying when you're in the middle of listening to a playlist and all of a sudden it changes. It makes looking for new music a full-time job. They blame it on the cache being too full. I have tried all of Spotify's recommended fixes and nothing helps. I have now resorted to hiding every song I listen to on Spotify curated playlists just so I know what I've heard already.