Matching and Fix Match no longer working?

@GellmanMedia said:

this screengrab was right before it changed the title

Sounds like embedded metadata in the file. If you notice, the movie 28 Days is the same way. If you’re ripping from a DVD; a lot of software put garbage into to metadata on mp4 files and that tends to override Plex.
Check your file and see if it has random stuff in it, by right-clicking and selecting “properties”.
You’ll get something like this:

go to the details tab and see what’s there. If it has random stuff there; that’s what’s causing the trouble. You can delete it and then try again. Also, check if your server settings has “local” in the top spot:

If so, move it to the bottom of the list.

After all that, you’ll have to do the “Plex Dance

The Plex Dance®:

  1. remove show/movie from library
  2. rescan library files
  3. empty trash
  4. clean bundles
    https://support.plex.tv/hc/en-us/articles/200392106-Library-Actions <— scan library files, empty trash, clean bundles
  5. bring names and structures into compliance/Move LMA/etc
  6. replace corrected show/movie into library
  7. rescan library files

All Steps. In Order. No Shortcuts.