Okay, so I open up the cells for REPCONN HQ and I try all three floors/cells, and in each one of them the floors and multiple other items are seemingly invisible.
So there looks like there is no floor, but when I click on the floor I can see that I've marked it or some trash or whateverelse is invisible.
Any idea as to why things don't load in REPCONN HQ? Or, why they turn invisible?

I had a similar problem and ppl were kind to point me to this answer:
http://www.gamesas.com/topic/1148040-how-to-fix-lighting-havok-and-rendering-issues/page__hl__multibounds__fromsearch__1