Spotify will no longer load any menus, and playlists cannot be moved anymore. Currently playing playlist will not load any songs. Current song will continue playing but not able to move onto next song. If I close Spotify, I cannot open it again (screenshot). When I end spotify.exe in task manager and open again, it works fine until it happens again.
I'm not exactly sure when it decides to happen, but it happened many times last night while moving playlists in sidebar. Just now it happened when I wasn't doing anything, and went to click on a new playlist and realised nothing was happening again.