UV skewing with cut-in meshes

Hey guys. I'm developing an air base and I need cut-in geometry for the lines on the tarmac, taxiways, and runway. The problem I'm running into is that where the linework intersects the concrete, the concrete texture becomes skewed. Here's what I mean:



The same area, seen from above:



There's no skewing in Max. I've since triangulated the model before exporting and it still causes the UV skewing. What am I missing here?