My first guess would be that one of your files has embedded metadata which is messing things up. Do you have Prefer local metadata enabled ? If so try and disable it and force a refresh of the show.
If not then the other thing that could be happening is that S01E08 of that show only aired today and it might take plex a day or two to get its updates for it.
Also – double check the show is matched correctly. Just in case its not.
Okay, then unless anyone else has a suggestion I’d suggest waiting 24-48 hours and see if it sorts itself out. Your server will refresh the metadata for the show during maintenance but you can force a refresh as well. Plex cache just may not have caught up yet.