I recently started making my own e-liquid, and am having some issues with the gummy bear from flavor west. I had a map tank, keyword being "had," and after using gummy bear, the tank developed a crack all the way down the side. i poured the liquid back into the bottle so it wouldn't spill and go to waste, and switched to a xxxl clear carto. as the tank lay on the counter, it got the "windshield" effect, cracks running every which way. hmmm... strange... so i got about 3 good puffs out of the xxxl carto, and set my box mod on the counter. within 10 minutes, the whole carto simply SHATTERED. it looked as if i had filled it with water and frozen it. its in about 15 small pieces now. Anyone have issues with this before?