Hi! I have been using Nauticam housings since 2012, and my current one (A7II) since 2016. Two weeks ago I was doing some photography in an old mine. On the first dive I had no problems, but on the second one (i did not open the housing in between) the leak sensor was going red after 20 minutes, 37 meter down and soon I could see the water filling up the dome port. I kept the dome port downwards and the canon 8-15 lens was partly under water. The lens was fine, but unfortunately the camera d