- disable automatic and periodic library updates
- disable “Empty trash automatically after every scan”
- restore an older version of the database https://support.plex.tv/articles/202485658-restore-a-database-backed-up-via-scheduled-tasks/
- edit the database directly and replace the old NAS IP with the new one: [HowTo] Plex database modification - Moving media the right/wrong way - #10 by jelwell