Seems like the glass on our Cab50 always becomes dirty within a few days of a full cleaning. Ash/dirtiness on glass starts at the bottom of glass edge and works its way up glass over a few days. Stove seems to burn “dirty” at times as well. Did the dollar bill test and noticed a couple loose spots. In tearing the door gasket out to replace I decided to check the glass gasket as well. Noticed the glass only has gaskets on the sides, not the top or bottom of glass edge. Is this correct or did the manufacturer miss this??? There’s a grove at the top and bottom similar to the grove on the side for the glass gaskets. Given my dirty glass issue, should I place glass gasket all the way around the glass edge or just the sides like it was???? Thanks for your input.