Collections don't have thumbnails

[prahal]

Please check in http://your-site/web/#/metadata that the collections items are not "locked for future changes".

I am not using the TMDb Box Sets plugin but the built-in collection generator, and it was what prevented me from getting metadata and pictures generated in the /data/collections folder (my installation went wrong, and I delete /data/collections, metadata, etc folders, but somehow the lock was kept for the collection items in the jellyfin db).

As of now I did not find a way to batch unlock collection items, I have to unlock then lock them back one by one.

Edit: sorry, I missed the existing answer https://forum.jellyfin.org/t-collections...4#pid46384 about the lock state.

Still, I would be interested if there is a way to batch unlock collection items.

Also, might be a bug that Identify does not return anything when an item is locked without a warning as to why it does so.

Edit2: I found a way to batch unlock the collections items:
in http://your-site/web/#/metadata edit the library item "Collections" set it to unlock, save. All its sub collection items will be unlocked.