Music Cover

Hello

The cover songs (mp3) are not always displayed on my My Cloud Home.
With the MacOS Finder or in Windows Explorer and in every player I tested, the cover is displayed.
Apparently mp3s larger than 10MB are affected. For all songs larger than 10MB, only a clef is displayed at home.mycloud.com.

Addendum:
The same problem exists with My Cloud EX2 Ultra with os5 beta.

Thanks and regards
PEN