Unreadable title

[Erasmas]

Hello,

First of all, know that I have a bad level in English so this is a google translation.

My problem: When I click on a group listened to recently, I see the list of its musics. If I put one of its music in my Playlist "Liked title" then when I re-click on the group (always starting from recent listening), it is written: No readable title. If I remove the music from "Liked title" , it becomes normal again. Why ? I had never had this problem.

Thank! 

[Erasmas]

Nobody ? It's not a solution, but for the moment, I just "dislike" all the musics ...