Hi, i recently have EXACTLY same problem. MS make just black pictures. I realized.time ago, buy day by day going worse and worse. Today I was.checkomg and almost ANY picture is OK.
Focus moves correctly with the Manual Shutter, but all pics are black. Also the video is OK. I changed to Electronic Shutter, and works fine. I'll continue testing today....
Do you have any news about this issue??
Thanks!!!