Unless I'm missing something... But if I'm not: edits to the Pauper deck after submitting the deck are not reflected. You have to resubmit the deck (or in my case, build a second pauper deck, submit that, then resubmit the edited deck).
Yup, this is a bug. You can just re-submit the same deck (don’t need to swap to another), but you will need to submit again for edits to take.