Do you have any duplicates listed (see screenshot below)? Wondering if it is getting combined with another movie. If it is, you can split them apart.
Also, try adding the IMDB ID to the movie name then Plex Dance it again. This will force Plex to match it correctly.
Dr. No (1962) {imdb-tt0055928}.mkv ← must use curly braces around the ID.
