Why are my two Kill Bill movies merging into one movie?

I use Filebot, which works around the fact we can’t use colons in Windows, so I have it replace colons with space + hyphen.

Normally, it’s fine but in the case of “something - vol. 1” and “something - vol. 2”, Plex interprets them as two halves of the same movie!

The weird thing is how it continued to merge the two movies, even after I removed the hyphen. I wonder if I needed to do the Plex Dance after removing the hyphen, or if the same thing would happen anyway.

Plex Dance didn’t make any difference. Going to try separating using subfolders now.