I've had the Em-1 with nauticam with a few dives already everything was fine. Today the flash was not firing in the housing only every other time or more (all black photos). Took out the camera charged all the batteries and put it back in the housing and same issue. I have not changed any settings and have flash set to 1/64th power. What am I missing? I do see the red focus light come on in the camera.Thanks,