every once in a while, you might come across a patch of darker floor textures... which shows how beautiful the floor should look (exhibit B and C).
Those are the facility levels I mentioned in my first post, thanks for the screenshots
Im hoping because its a common texture that it will be slightly easier to fix than say the falling through the floor bug which requires individual level editing.
ALL of the those facility levels use that same texture and have the same problem including the one in your 3rd screenshot where it seems the lights have turned off completely in certain squares.
oh yeah... I've been to that planet too... there are a few that are similar with sandy bits in a forest where the sand is that bright too...
I thought it annoying, but didn't consider it a bug... cause there were a few planets like that in the shows :\
i'll bug it the next time I see it again.