Most people post matching problems in the “General” forums. Found this by chance…
Folders and file names something like this SHOULD work.
TV SHOWS
X-Men The Animated Series
Season 01
X-Men The Animated Series - S01E01 - Night of the Sentinels (Part 1).mp4
X-Men The Animated Series - S01E02 - Night of the Sentinels (Part 2).mp4
More season 1 episodes here (named similarly)
Since you already have them episodes mismatched and/or combined, you might have to "Plex Dance them. Instructions are here:
https://forums.plex.tv/discussion/277433/the-plex-dance#latest
