seems like mine doesn't affected with the AF issue..
tested on 24-70@ 24mm F2.8, and 85mm @ 1.4
both oso doesn't show any different compared to live view.
i tested Left VF-AF VS Left LV-AF, center VF-AF VS center LV-AF, and Right VF-AF VS Right LV-AF.
i use timer + exposure delay 2 seconds, camera mounted on 190cxpro3. the picture is exactly 1 meter away from the front element of the lens, when 24mm picture is taken.

selected picture is LV AF, while candidate picture is VF AF for left most AF point


hopefully all newer batch has the problem settled..