Hi. I am an openwater swimmer and always take my go pro hero 3+ black with me tucked I to my swimsuit. Last week I borrowed my son’s hero 5 black to experiment the touch screen. By the time i came out I noticed a slight crack in the touch screen that then grew into a big crack as it dried. As anyone experienced this in the cold before? Water was about 4C. It’s in my swimsuit so experience normal pressure and I’m always just on the surface so no extra pressure from depth either. Quite miffed as he has hardly used it before and it was being used carefully.