Has anyone experienced this. Bought the MK2i and have completed 3 dives without any problems. After the third dive, I rinsed it and it was working great. I was on vacation so left it in the room safe for the next day. Then when I put it on a day later, three of the buttons were pushed completely in and stuck. I was able to free them by pulling the button out. No issues since then and have been swimming and working out but no dives. Does anyone have any similar issues? Thanks!