I was just renaming episodes of Diagnosis Murder and I noticed it was sorting some episodes out of order. This screenshot was taken after pressing the "Sort files" button. Notice that episode 13 is out of order and at the end. Episode 13 was in order before I pressed the "sort files" button. Just thought I'd let you know about it in case you didn't already know about it.
So the "sort files" button does an attempt to sort files based on a best effort to determine season and episode number. Considering some odd naming styles and show/episode names that could contain numbers as well, this can go sideways at times.
I'd love to double check though, after all, it is not impossible that I goofed up somehow 😉
Do you have a list of the actual filenames? Or are these the actual filenames already?