Mistakenly added some duplicate files and ran a scan. Plex picked up the files and now I have two versions.
Plex knows these extras are unavailable.
Rescanned, Emptied Trash - all files still present. I’ve even removed the folders from the library but Plex is persistent in keeping these unavailable files.
On the affected Files, use the Bottom Right Ellipsis ⋮ / Info, you will see both Entries and path. One will have Unavailable marked. Just delete that one and your good to go.