11 hours ago
It could be one of two things, probably number 1.
1. There is a task that will remove items from a collection/playlist when the server starts if the item is no longer present. If your media is not detected when this runs, it will be removed.
Dashboard -> Scheduled Tasks - Clean up collections and playlists. The default trigger is "on application startup". Just delete that.
2. When you identify or scan with the replace metadata option, there was a bug that removed the item paths from the collections. That issue is solved in the upcoming 10.11 release.
https://github.com/jellyfin/jellyfin/issues/12724
1. There is a task that will remove items from a collection/playlist when the server starts if the item is no longer present. If your media is not detected when this runs, it will be removed.
Dashboard -> Scheduled Tasks - Clean up collections and playlists. The default trigger is "on application startup". Just delete that.
2. When you identify or scan with the replace metadata option, there was a bug that removed the item paths from the collections. That issue is solved in the upcoming 10.11 release.
https://github.com/jellyfin/jellyfin/issues/12724