Just checked in at MCO with no lines and no problems. Re-syncing the reservation only took a few moments. Although to be fair, it was a formerly-CO employee helping me. There was a (shall we say) very "mature" UA agent next to my agent trying to help a customer and she couldn't have looked any more dazed and confused if UA had called her up this morning and asked her to fly a 777 over to London. Poor thing.