D810 shutter speed on LCD vs "i" info screen

[Zoomy]

95% of the time I'll go to that cool new "i" screen for quick changes & shutter speed usually looks right on while on top LCD it's fluctuating & many times not even close meanwhile metering does it's job & my pics come out amazing but I'm always scratching my head like wtf?? In aperature priority it goes berserk & here's the kicker it happens in Manual...huh?! Just wondering if this has happened to anyone.