The thumbnail? You mean the image of the set?
I don't see why that should be generated. It isn't an image of the LDraw file but and image of the LEGO set. There are no images of the LDraw files anywhere.
I don't see why that should be generated. It isn't an image of the LDraw file but and image of the LEGO set. There are no images of the LDraw files anywhere.