Same happened to me: P1P1 Inspiring Overseer turned into a Sewer Crocodile, changed my picks during draft, then changed back to an inspiring overseer once draft was done and I "submitted deck" (resulted in error, open back up to make my deck and there's my extra inspiring overseer).
Same happened to me: P1P1 Inspiring Overseer turned into a Sewer Crocodile, changed my picks during draft, then changed back to an inspiring overseer once draft was done and I "submitted deck" (resulted in error, open back up to make my deck and there's my extra inspiring overseer).
Need refund.
17lands draft log: https://www.17lands.com/draft/1304c95474ba4e99b849d8b40bbc7068