Recently I started noticing that when I try to add a song to one of my already existing playlists, only some of them show up in the list as available to add a song to. I had thought that maybe I'd accidentally deleted some playlists, but I've confirmed that I can see and play all of my original playlists from the righthand sidebar in my desktop app. Today, I tried to add a song to a playlist that didn't appear (only 4 of the many playlists I have showed up in the list)... So I logged out of my account hoping that would make a difference and tried again, only to find that, now, only 2 playlists of my many showed up in the list. This problem is currently happening in both my iPhone and desktop apps, and is getting to be quite frustrating, since building playlists is one of the main reasons I use Spotify. Sometimes all of the playlists show up in the list like they should, but I would like this to stop happening, period. Any guidance/suggestions are appreciated!