Thank you for the reply!
/mnt/tvdisk/plex/movies/ is a hard drive internal to this computer.
/mnt/tvdisk/plex/movies/Harry Potter and the Deathly Hallows Part 2 (2011) the folder in bold was the folder I deleted as it was empty once some issue occurred with the recording.
The folder for Harry Potter and the Deathly Hallows Part 1 (2010) is also in /mnt/tvdisk/plex/movies/ and is showing up fine along with other recorded movies.
Thank you for the link to perform The Plex Dance! I had attempted to clear some things but since I hadn’t found that list before I know for sure I had not done everything on that list before.
Now I’ll need to wait for the movie to air again to see if that solved the issue.