Mesh Asset from Marketplace turns to black whenever lighting is built

So I bought this tropical village pack for UE4. Whenever I build the lighting, some meshes turn to black. The shadows with the foilage gets messed up as well. The demo scene of the pack looks fine with the lighting and all. I’m just not sure what to do to make it fixed. Thank you so much!

And oh my landscape is only 100 x 100.