You nailed it on the melting. If you hold heat on a diecut for too long they will seperate like this. It is essentially melting away the bond between the inlaid materials. The pickling is likely related (although I cannot say with certainty from the picture). It is possible to heat a base so that small bubbles form and collapse.
That's crazy because I only turn the iron hot enough to melt the wax and not smoke.... Plus I would hope I'd notice doing that? But I must have, pretty sure the snow didn't melt it....
Hey so is the elephant on the boss and the base on the boss orange or red? The look orange in the pic but red in the catalogue?