Suddenly: Missing Movie Poster on Synology NAS

[Sturmkater 0]

After a sync of my work-related folder with Syncthing (no emby folder got touched) I noticed that a lot of the movie posters got missing. I assumed a corruption because of a lack of enought inotify, so I increased them to 204800.

I did "Refresh Metadata" (including "Replace existing images") and "Scan Library Files" a couple of times. It initially worked and I got my covers back, till the next day half of them were missing again. Syncing is deactivated since a long time now, so I'm not sure it's related to the issue.

The missing posters appear in the emby app, Kodi and diverse browsers.

Any idea where the bug could be buried?

embyserver.txt