Can't change playlist cover

[wiktoriaz]

Plan

Premium

Country

Poland

Device

(Laptop)

Operating System

(Windows 10)

My Question or Issue

I can't change my playlist cover, I thought maybe it was because somehow I tried to upload PNG version of the picture, but turned out it wasn't the issue. I asked my friends if then can change their playlist cover, all of them said yes. So I thought that maybe I should just wait a little bit more and it will fix at some point, but it's been almost four days and I still cannot change the cover. And yes, I tried different pictures, didn't work. I tried logging off multiple times and the log in, but it didn't help either, as well as simply shutting the app off. When I try to change it, it says "You cannot save changes to a playlist. Try again." 

[typeoneerror]

Still not working in 2025. Reinstalled, Chome and desktop, cleared cache. Nothing described here works. Image uploading does not work.