So I went out shooting a few days ago.. All is well when I got home and uploaded the pics onto my laptop, lots of my photos of my 85L were out of focus (back focusing). Before you say user error etc, I'm pretty good with this lens. So I went into the camera AFMA settings to dial the AF back and it was on 0. So I switched all my lens to check if they have saved and they also have all been reset back to 0. Anyone have any ideas why my AFMA setting was not saved ?