• The issue appears to happen around the time new media is scanned into the library.
  
• Initially, cover art disappears from items on the homepage.
  
• In the Jellyfin dashboard, under Libraries, all libraries are gone.
  
• The "Scan Media Library" scheduled task fails.
  
• Running an integrity check on both the
  jellyfin.db and library.db returns no errors.
  
• Logs don’t indicate corruption or failure to load the database. However, metadata errors appear, and I noticed that the metadata folder is significantly smaller than usual.
  
• The only way to restore functionality is reverting to a snapshot of the dataset used by Jellyfin.
  

• Checked filesystem integrity – no issues.
  
• Removed and reinstalled Jellyfin and its dataset multiple times.
  
• Verified that *arr apps do not have direct access to Jellyfin.
  
• Examined logs but haven’t found anything obviously indicating database corruption or deletion.
  

(2025-03-23, 11:16 PM)TheDreadPirate Wrote: Can you share how Jellyfin is configured in TrueNAS?  Specifically where you've mounted /config and /cache.  It sounds like you've co-mingled /config and /cache in the same folder instead of creating separate folders for each.  If my assumption is correct, the cache cleanup job is essentially wiping out any permanent config files that are not currently in use.  So things like your databases will remain, but library configs and images will be "cleaned up"