Simple fixes for EPs going forward.
Option 1: Before you list out your bid winners, announce the teams at your event that your list shows as already having paid bids and at larges. This recognizes those teams to the crowd, plus it gives you a chance to find out if there are errors. (You can ask if there are other teams that weren't listed to let you know.) Once you have announced this and given time for the crowd to correct your mistakes, THEN announce your new bid winners.
Option 2: Use the Fierce Wiki instead of the USASF form. It is much more likely to be accurate.