Problems with Your Music

[user-removed]

I spent a long time yesterday adding artists/albums to my music. I have a premium account that I use on both an Android phone and a Windows 8.1 laptop/tablet. Today, none of those artists/albums are in my music. This isn't the first time this has happened, and I really love this program, but this is extremely frustraing. Is there a limit to how many artists I can save? On Premium? this isn't even about downloads, just making my playlists. I