TV shows including Special Features

I have a collection of TV shows in my plex and I use iFlicks 2 for metadata and import everything into iTunes and from there it goes into my plex system. It was worked perfect for everything but when I add Special Features to my library I start to see the files attach themselves to episodes. Example. for Game Of Thrones I have all of season 2 and I added season 2 special features and now it shows there’s 28 versions of one of the episodes and 2 for another in season two. I have the under two different Genres but same TV show name. I can’t seem to see any rhyme or reason for this happening. Now when I rename to show name to GoT Special features it fixes everything.

Any help would be great

https://forums.plex.tv/discussion/316757/adding-extras-featurettes-deleted-scenes-to-tv-shows