Albums containing wav files are seen as "Unkown artist"/"Unknown album", all together

Environment

• Lollypop version: 1.2.35
• GTK+ version: ?
• Operating system: ubuntu 20.4

Bug

In my library, I have some albums with tracks in wav format. Tags are corrects in Clementine (for example), each album is on a corresponding file folder (like somewhere/Artist/Album), but all wav tracks appears in single album "Unknown"/artist "Unknown". :-((

Can you tell me how to resolve this problem ? Lollypop is really a great software (the best interface I found), but I plan to put all my CD in wav format, for sound quality reason, and actually, I can't use Lollypop while it don't manage correctly wav tags.

Best regards. Jean-Pierre