Multiple movie thumbnails for the same movie

I have ripped my entire dvd collection using makemkv.
Most is not all generated multiple tittles…
For example.

movie 300.. created
300_t00.mkv
300_t01.mkv
300_t02.mkv

Some movies have 20 or more titles..
Each movie has its own folder.

I am running Kodi on Ubuntu

My issue is when i view it in Kodi, I see a movie thumbnail for each “title” in the folder

Thanks