X Plane Dark Light

Why does the cockpit stay dark all day when advancing the time
(Shift+L) but at dusk it turns light and STAYS light throughout the day when the time is reversed? (Shift+K)
FWIW... this is even worse in beta versions of X-Plane 12

[@otherflash]

I don't know, but you should figure that out. That would make it hard to fly!