Directly connect a TV show via url?

Not to mention that Local Media Assets in the top slot while you’re trying to use that MP4 file will probably result in much pain and suffering:

FileBot (link in my signature) can handle that for you automatically or manually in seconds.

What FileBot can’t do is remove possible embedded metadata in the Title Field of MP4/M4V files. Plex will read this info and prefer it over a perfect file name/structure, but you can combat that situation by moving Local Media Assets to the bottom of every agent list you can find. All tabs in TV Shows and Movies here:
https://support.plex.tv/hc/en-us/articles/200241558-Agents
Just drag LMA to the bottom of the list and drop it. If you do have embedded metadata this will cure the issue, if you don’t it won’t matter. LMA will do what it has to from the bottom.

Also - unless the series remains totally unmatched (as in, never found or identified), Refresh Metadata will do exactly NOTHING. Only The Plex Dance® can re-write a bogus bundle so it contains non-bogus info:

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.

Still No Joy?

Log Files:
https://support.plex.tv/articles/200250417-plex-media-server-log-files/
Drag zip file to message window and drop it.