Album Cover not stored in database

Hi
today I made the upgrade to NC 11 and Audioplayer 1.4.0.
I added some more songs and nearly all went good.
The only thing not working is to load the album cover that it can be seen.
You can upload it and it but if you mark
"Als Album Cover verwenden" and press save then nothing happen so if you
open your audioplayer you will not see the album cover.
In the last version 2 of audioplayer it was working.