What are your Agents settings for movies?
Agents -> Movies -> Plex Movie
- Move Plex Movie to the top. Click gear to the right and select desired options.
- Uncheck Local Media Assets (Movies).
Agents -> Movies -> The Movie Database
- Plex Movie and The Movie Database should be the top two options.
- Uncheck Local Media Assets (Movies).
Refresh Metadata for one or two movies as a test. If works OK, then refresh the entire library.
If it still doesn’t work, try Plex Dancing one or two movies.