Recently, I had downloaded 2 remixes to popular songs off of youtube onto my itunes library so that i could play them in the car etc. Spotify is my primary source for music so i would use that for the original songs, and then switch to apple music just to play the other 2 if i wanted. I found that now that those files were downloaded, my spotify has been playing the remixes on the spotify platform whenever i go to try and play the original song. For instance, I downloaded a Post Malone, I Fall Apart Remix and when i go to play the original on spotify, it proceeds to play the remix from my apple music. The same has happened with deleted music, i recently cleaned out most of my apple music downloads that i dont need becuause i only use spotify. I deleted an entire album (Memories... Do Not Open by the Chainsmokers) and now when i try to play songs from that album on spotify, they dont play.