I’m sure you know all this, but when you do a metadata refresh on stuff that had previously been matched, it doesn’t unmatch the entire show if there is a discrepancy in the metadata. What it will do, though, is mark individual episodes as unmatched. This happens whether a show is in the Plex database or not. It’s then up to the user to figure out what happened. In my case, on this refresh it had only unmatched about 600 episodes out of a total of 120k+. Not bad at all, actually. I was able to fix a few shows manually, either by editing the episodes to match the current TVDB, or by doing the Plex Dance. Those three mentioned above I have been unable to fix, and I figured this is because they aren’t in the Plex DB at all.
