Plex cannot show "Recommended" music section after update though library works

Plex Media Server
, , ,
1

Server Version#: PlexMediaServer-1.43.1.10576-06378bdcd-x86_64_DSM72
Player Version#: 4.159.0

Hello, after the current Plex media server update (on Synology NAS) I am suddenly having issues getting the ‘Recommended’ tab of my “Music” section to work.

It says “there was an unexpected error loading this library” but the Library tab does work and I can play media. Also for series and movies (and also another music library) the “Recommended” tab works, just NOT for “Music”.

I tested it via the Web app, the Plexamp app on the iPhone and the Plexamp app on Windows desktop, all the same.

Any ideas how I could fix it?
I already tried restarting the server and logging out/logging in as user from the player.

Thanks in advance.

2

I also alread tried "clicking on “Optimizing the Database” in the settings, but that didn’t help either.