Library won't update

Hej Guys.

My plex server on my Synology is suddenly stopped updating the library with the recent content.
I have worked perfect for years.

Yesterday i tried to update to the latest version and restart the package.
Nothing help.

I can’t even get the content showed if i force a library update.

Any tricks?

Every now & then Synology forgets permission on your media shares for user plex.

Go to Control Panel - Shared Folders - Permissions (tab) and make sure user plex still has permission

Great.
Works perfect now.

And actually not the only permission that have been altered after an update.

which permission would that be?