Multiple Episodes in a Single File (naming) -not working

[SE56]

I would try this tutorial from Otto.

[HowTo]: splitting multi-episode files with MKVtoolnix GUI

The purpose of this HowTo is to split videofiles which contain more than one episode of a tv show into single-episode files. So they show up individually within plex, can be played individually and don’t produce any of the weird things that multi-episode files are plagued with. The tool used is MKVtoolnixGUI it is freely available for all major PC operating systems. Therefore the container format of the output files will be MKV. The input format can be a multitude of containers like AVI, MP4…

Available on MacOS also