Several months ago we wrapped a Sprinter van with the Arlon SLX wrap vinyl and laminate. There is no rear window on this van, but the design called for printed vinyl to look like a window (black with lighter text). So, we wrapped the entire rear of the van with digitally printed solid red Arlon (HP Latex printer) with laminate. In the recessed area where the window would be, we laid a second layer of black digitally printed Arlon, with laminate. In that area, it is spider cracking (see pic). Could it be an issue with there being two layers? Is it possible one of my employees grabbed the wrong laminate when laminating this one area? This is easily resolved, but we are relatively new to the Arlon product and I want to understand what went wrong. I appreciate the help.