After flooding some cookies the other day, I put them on the rack to dry and let them dry overnight. The icing dried what appeared to be in a wrinkled mess!!! This have never happened before. I have made the same recipe and have used the same product brands as I always do. Just thought I would throw it out there to see if its happened to anyone else out there.
p.s. I have tried more flooding since with the same batch of flood icing and no wrinkles. hhhhmmmmm