I recently had the same thing happen. I got a new Kelsi mold, which I love, decided to put in the oven for an hour on lowest setting then turned off the oven and just let it stay in there overnight. The next morning the top of it looked like aligator skin, when I took it out of the mold, there were parts that looked like clear glycerin soap as an outer layer. It was very strange. Sorry, don't have a picture to share because I trashed them. I am glad to know that it was probably due to overheating, I didn't think of that. My question is does overheating ruin the soap or just ruin the appearance?