Thank you for your reply.
Your file naming doesn’t look too different to mine. Nevertheless, I’ve renamed my files to match yours exactly:
But I still have the same problem. It matches to the episode A Murder Is Announced rather to the series. (Yes, I’ve done the Plex Dance, yet again.)
I’m wondering if it’s how my agents setting at the server level? I’m not sure what’s supposed to be set there. Some of my settings there are greyed out and can’t be changed anyway.