UE4 Lighting weirdly. Help?

IllusivePixel

Hey there, I put my asset into UE4 and the lighting looks really weird, there are black stripes going across it. It looks fine in UDK so I can only imagine it's something I'm not seeing in UE4.
Can someone help? :O

IllusivePixel

Image seems to not want to show. Here's the link: https://www.flickr.com/photos/63367666@N07/13982334122/