I have two brushes next to one another. They have the same material, and in the editor I have ensured that they stitch together properly. However, in game it's a total disaster as it looks like this: http://i.imgur.com/98ATYS1.jpg Desperately need help here. edit: turns out i was compiling an old version of my map because it had an error. good. anyway, there's still a problem: the two brushes are lined up properly now but one of them is considerably darker than the other. i don't even know how that could happen.