To me this is not the issue of the epoxy more of an institution issue. Perhaps something as simple as not using alcohol wipe on the light to remove any oils from manufacturing. Looks like it had no problem sticking to the glass.
It suck when you have a few people at the end of a line of...
I have had my yuck in for numerous repairs the first year and every one of them Tesla took really good care of me. Either repairs that day or a loaner. Better service than I can say from my local GMC dealer.
We were stopping at In N out and this couple were taking pictures of them selves in front of the truck. She was looking in didnāt see us due to the tint. I open the door to let them check it out. They totally loved it. Turned out they are from Germany. They said no trucks in that country...