This resulted in two of the players going from a push to a loss. They then went to the discard tray to replay the hands. The dealer had missed the fact there was a straight with a higher 2-card hand, but set it and went through 4 players when the pit boss came over and said 'You set that wrong' and proceeded to re-set the hand. At a full pai gow poker table, the dealer set her cards, I believe it was a Jack/Ten in the 2-card hand and a flush in the 5 card-hand.
I ran into a situation in Reno a couple years ago that no one else seems to have heard before.