Edit your Star Wars movie(s). Is the input field for “Collection” locked?
If it is, it won’t be changed by a metadata refresh.
If you want to start over with all your collections, you need to unlock all of those collection fields in your database at once. But there is no easy way to achieve that.
You could delete and recreate the library.
If you rather don’t want to do that, here is a way to unlock the collection fields at once: Reset all manual poster selections in a library at once
(you want to set collection.locked=0)
Keep in mind though that this might leave empty duplicate collections in your library.
