For some reason most of the cover arts are not shown anymore on my BS5

All my music is stored on a Synology and all music files have the correct cover art (resolution max 500x500) plus mp3 tags.

 

I am using the latest version of DSM and Media Server.

The profile of my BS5 device is set to "Default Profile with original cover" under Control Panel > Media Server > > "DMA Compatibility" > Device list. 

I have relaunch the scan from the Media Server, but stil after a couple of days only a few covers show up on my BS5.

Does anybody know a solution to this problem?

 

 

Location: The Netherlands

My B&O Icons:

Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beovision-Horizon.png Beovision-Horizon.png
Beotime.png Beotime.png
Beosound-Theatre-.png Beosound-Theatre-.png
Beosound-5.png Beosound-5.png
Beoremote-One.png Beoremote-One.png
Beoplay-H95.png Beoplay-H95.png
Beoplay-Earset.png Beoplay-Earset.png
Beogram-400x.png Beogram-400x.png