I assume we are talking about Snowpiercer here?
And you confused us all, when you mentioned S1E1 but has the files tagged - S01E01 -
Your naming is more or less good, but personally, I would do a Plex Dance, and when putting files back into the file structure, I would name the Show directory Snowpiercer (2020) {tmdb-79680} as well as rename season folders to Season 01 etc.
When that’s said, is your PMS running as a user named david or is it a member of the david group?
Since your naming isn’t that far off, I would also look in the PMS logs for the word malformed
Oh…And forgot
You do have files in your TV library, that are WAY OFF the naming std, like the Insecure episode located at the root of your TV library
