Removing items from drag and drop poster options?

@Meithas said:
Okay. I’m having a pretty specific problem, and I’m not sure how to fix it.
I have a music library up on Plex. All the music is tagged and has album art attached. The library used personal media artists for metadata, but because I didn’t want to go in and type up things like artist bios and related artist lists, I have started going through as I listen and matching artists to the last.fm metadata.
When I do, the artist metadata comes through fine, but the album metadata almost always changes the album art to a cover for an entirely different album from an entirely different artist. When I go in to fix it, there’s a huge list of possible album covers in the drag and drop list. The first one in the list is the incorrect one that keeps being changed out for the correct one. The actual correct one is sometimes at the end of the long list, but often just stuck in the middle somewhere, which means I’m spending a lot of time scrolling through looking for the correct album cover.
Is there any way to remove things from the drag and drop list? I don’t know why it’s populated with all these pictures, but it’s making this whole process take ages and it’s very frustrating. I tried emptying the trash and cleaning the bundles, but neither worked.

Plex dance the offending file