Movie Extras showing up in Movies section

Version: 10.6.4
Operating System: Linux (Ubuntu)

Hi, I have an issue with movie extras showing up as movies. They are located in the correct folders: Movie Name\Extras\ExtraTitle.mp4


Any idea why this might be?
I do have two versons of the movies, but they are named correclty too ie. MovieName - Version1.mp4 and MovieName - Verson2.mkv