How can I record an episode when Plex thinks it's already in my library?

So based on that wiki link the “code” is just season and episode which is what it looks like the guide is picking up also which is the most accurate, thetvdb on the other hand shows Secrets of the Sky Tombs as S44E08 where it should really be S44E01 according to the wiki which again is what the guide is displaying.

If you update TVDB to reflect the “code” it will look right…