I received my D850 2 days ago and expected the transition between the D810 and 50 would be smooth... well... I can't seem to get out of Single Point AF no matter what I do. I know that it must be me and the issue is likely a simple resolve that I can't seem to find. The result is not being able to shoot outside of the single point AF and not getting the benefit of seeing the focus point blocks in the view finder associated with switching the settings. Any assistance would be greatly appreciated!!