PMDG lights at sunset or dawn

Hi guys 

i have 2 issues to talk about

first, i dont know if this is a problem in FSX or no but when i fly in dawn or sunset, the taxi lights and landing lights never show on the ground while taxing, the strange thing is sometimes they show up in the middle of the day, but why not daw or sunset?
 

second, i also dont know if its fsx restriction, but why the strobe lights dont illuminate on the ground from inside the cockpit? that was in the ngx tho, its nice to see the strobe illuminates on the runway while just before touchdown  :wub:  :wub:  :wub: