I swear I entered mine in exactly the order they appeared, and yet when I went back and looked at it later AMCAS had switched several of them, including taking some 1st semester classes and sticking them after the 2nd semester classes for a given year. They're still labeled correctly but not in the right order. Half of me feels paranoid enough to want to delete and fix it, and half of me is worried that it'll just happen again if I do that haha