You’re describing what happens when you have more folders than DSM can monitor without slight customization.
To verify.
- DEBUG server logging on, VERBOSE logging off, SAVE if changed
- Restart PMS
- Wait 3-4 minutes (give it time to finish initialization)
- Download the logs ZIP file
- Open the ZIP and inspect “Plex Media Server.log”
- Search for ‘No space left on device’ . It’ll occur on a ‘Notify’ event record.
If this is the case, follow this procedure.