I’ve read on some of my fb cake decorating pages that you can refrigerate, but not freeze. But so much depends on the type of fridge. Some create more condensation than others. I have a built in dehumidifier in my fridge, so I don’t get any condensation on any of my cakes. So if you have to refrigerate your cake, I would add the sugar sheet after removing cake from the fridge and cake comes to room temperature.
Creativity is God's gift to us. Using our creativity is our gift back to God. Clarky's Cakes 😎