For the life of me i cant figure out why plex is skipping the first episode of the season. The file is named correctly but starts with the second ep. Longtime user with no idea why, my only guess is maybe because the year is 2020 and everything else is 2021? there’s nothing in the tags that seem suspect.
Your episodes do not match up with what they show for Season 09.
For example, they list only 24 episodes in season 9. Also, Episode 1 is listed as Tuesday, January 26th, 2021. Other episodes also differ from your listings.
If TheTVDB is incorrect, you can contact them about correcting the listings. Also, some shows are user editable. You may be able to correct the listing yourself.
It may take a couple of days, but Plex will pick up the updated information.