Songs are added to my playlist without me doing anything

[itsGrimes]

Plan

Premium

Country

Germany

Device

PC

Operating System

Windows 10

My Question or Issue

Songs from one of my playlists are packed without doing anything to one of my other playlists. In addition, my main playlist is completely mixed up. The order I had before is now completely different. Strangely, the songs are only mixed up in my main playlist and only there are the songs added without me doing anything. I also had the problem with my previous main playlist, but then I made a new one and then everything was ok for a while. But for some time now I have had this problem with my playlist again.