These aren't things that I've found odd, but they're problems in the game. In Dantooine, near where you have to do the murder trial thing, there's a poly missing from the base of the wall/cliff type thing. Also, there is a pillar in the Sith Base on Taris that they forgot to UVW unwrap.
Well, back to topic. I know why Czerka is failing on Tatooine. It's because they don't have any bathrooms and the workers have to pee and crap on the ore. That's why the ore corrodes do quick, it's got crap in it.