I have a constant issue of my library completing a full refresh/update every week or two. It basically resets/removes the entire library, completes an update and re-syncs all my watched settings. It's not a massive problem, just annoying when I go to watch the next episode of a series and I need to wait for the full library re-scan to be completed and the metadata to be re-synced.
I can't work out if this is an error with Plex, my MacMini or my Synology NAS. The network remains up with no connection losses.
Any suggestions?