I have had the same problem for months maybe over 1 year. I have been using Spotify since 2014 but lately My Library no longer shows all Artists. It currently shows only 6 artists which is wrong as I have saved thousands of songs and hundreds of artists. I have logged out and logged in but this didn't help. I never find my way to get in touch with the Spotify staff so I have to do without the Artists filtering option which was very useful By the way, why are the Spotify staff so secretive and impossible to get in touch with? I bet not even the N.A.S.A., or the F.B.I. staff are so impossible to reach. What the **bleep**!