So I have about have a dozen episodes in my library that have several minute prequels and rather than treat them as separate episodes I elected to name them so that would play contiguously as a single episode. I read that plex can handle multi-file videos even when they're in different file formats and I named them thus:
TV Show Title - s01e01 - pt1.mp4
TV Show Title - s01e01 - pt2.mkv
TV Show Title - s01e02 - pt1.mp4
TV Show Title - s01e02 - pt2.mkv
Despite this, they are being treated as separate versions of the same episode and not a contiguous video.
Apart from converting a dozen prequel files and then joining them to their dozen of episode counterparts, does anyone have an idea of where the trouble may be and a possible solution?