MySQL sharing problem after update to 8.1.1./8.1.2

I have 3 Wetek Play, 1 Wetek Play 2 and 1 Raspberry Pi v3 devices sharing the same video and music database on a synology NAS. I'm using libreelec 8.0.2. in all of them with no problem at all.

I've tried update the libreelec version in one of them, Wetek Play 2, to version 8.1.1. and after that to 8.1.2. After update Wetek Play 2 doesn't recognize the video and music database, and it shows the collection as empty.

Reverting back to 8.0.2 resolves problem completely.

Thank you very much for your help.