Each new version of PMS seems to be getting less reliable wth getting correct metadata fit TV series and films.
I've not changed how I name then and still use Filebot add I always have and an usf the same naming convention I anyways have. PMS was always pretty reliable but lately it's been failing around 10 percent of the time.
This seemed to coincide with a change to the agents used, Plex sends to have become one, but one that is not as good at its purpose as the old ones.