I've never had satin ice crack on me.
Can you give us more info? Or even a picture of what you are talking about?
How do you roll your fondant? If you roll your fondant on a greased plastic matt then flip it over on to the cake, the moister side of the fondant will be top up and may cure your problem.
I sometimes have the same problem and I think I have narrowed it down to the fact that it seems to do it when I use cornstarch instead of shortening to keep it from sticking. When I use shortening I dont seem to get the cracks. I think that is the difference for me anyway.. HTH
I used Satin Ice for a short time....just enough time to use up the 15lb bucket so not very long. I did encounter the cracking and I was using cornstarch so what I did to fix it was just knead it by hand instead of using my sheeter machine. The heat from my hands softened it up enough so that when I used the sheeter to roll it out and I then put it on my round and square cakes it was perfectly fine with no cracks.
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