Is it possible to use the eye autofocus feature in 4k modes? I am able to get it working in 1080 but not in 4k however it seems to recognize my face in 4k and do a pretty good job. I just switched from a Canon EOS R and just assumed this camera would do this. Anybody have any issues self filming in 4k without eye af if it does not indeed work in the 4k mode? Thanks!