2020 Mercedes-Benz E-Class STRUCTURE,UNKNOWN OR OTHER

I was operating my car on a 4-lane highway early in the morning, conditions were sunny and weather was approximately 50 degrees. Without warning the panoramic sunroof on my E63S exploded with a loud pop and showered the interior of my car with glass. This was sudden and unprovoked by any outside object or force. Mercedes Benz USA has denied any responsibility via both dealership and choosing to be non-responsive to my MBUSA incident claim on the matter. In searching, this seems to be a common problem.