Try Plex Dancing the movie.
This will remove all metadata, XML, etc info about the movie from your PMS. When you add the movie back, it is like adding it the first time.
For some reason the PMS scanners are not gathering all the data about yoru movies. You should see Video Resolution, Width, Height, Aspect Ratio, etc listed in the Media Info window. Plex Dancing the media forces a complete re-analysis. Hopefully the Plex scanners pick up all the data when re-analyzing the movie.