Coloring gets thrown off after build

I’m trying to make a house for virtual reality using UE4 and whenever I import a model(I’m using sketchup pro) it looks fine until I build it. I have played around with a lot of different settings trying to get this to work and nothing has changed it. Has anyone seen this problem before? is it a setting in UE or is it to do with how I export the model in sketchup.

Thanks in advance