Do you mean the favorite Playlist keeps all the track you mark with heart ? You can't edit that Playlist cover as far as I can tel 

Yeah but I tried changing it and it did work like in the edit page of the playlist it shows the cover I want, and when I took a quiz about my favorite tracks it also showed the new cover and not the orange heart. 

Hi ​@magmag !

When changing or editing your playlist image, make sure you SAVE twice.

 

 

Hi ​@magmag !

 

When changing or editing your playlist image, make sure you SAVE twice.

 

 

 

 

He is trying to change the favorite playlist made by deezer to every user I don’t think it is possible . Maybe it should be I don’t know 

​@magmag 

The cover of you favorite tracks you can't change, like ​@Noam Asulin  already said, because that cover is by default from Deezer.
You can create a new playlist and transfer your favorite songs to that playlist and only then you can change the cover .