I am on a premium plan using one of the Daily Mix playlists and wanted to stop a song from being played again on that playlist, and noticed that I can instead just "ban" the artist altogether from it, but after doing so, I still get songs from that artist in that playlist. I do not get the same song, but I do get songs from the same artist and album, regardless of whether or not there is an extra artist for that song. I have selected "Don't play this artist" three times on three different songs, but I still get that artist playing every so often. This happens on Android/Windows 10/Xbox One Spotify App. Any ideas about what could be going on?