Black artifacts on mesh after lighting rebuild.

I’ve got a simple chair that I created in Maya and imported it into UE4. It imports just fine, and looks great. Unfortunately whenever I rebuild the lighting, artifacts appear on the chairs in the upper left corner.


I’ve tried searching this problem, but haven’t come up with anything yet. Is there something I’m doing wrong? Is there a setting somewhere I’m missing?



ADDED: I should also note that if I move the chairs in any way, the artifacts go away until I rebuild the lighting again, then they come right back.

I think I solved my own problem. I decided to try resetting my UV map and the problem seems to have gone away. I’m getting normal chairs again! (Hooray for our side!) I’m trying to grasp this whole UV process. Texturing sure has changed a lot since the days of slapping a 256x256 image onto a 256x256 wall. lol