I've had this happen on my game before. Think it's more to do with the graphics card you're using (mine's an AMD), but that's just a guess. I'ts been a while but I think I fixed mine by changing which Cubemap file the character used or something like that?
Someone who knows what they're talking about should probably jump in any time now...
(If no one's around, I'll check for you when I get back to my computer )
- ebmar likes this