Please help, I made marshmallow fondant last night and let it sit overnight just as per instructions. Just went working on it, and it looks like there is all kinds of air bubbles in it. What do I do? Is there a way to fix this or will I have to make another batch? I've made it before just for play and such and it turned out perfect every time, and now when I have a cake, it's not working Please help....

have you tried kneeding it? That should work out the air bubbles.