I have this weird issue that I cannot lit up any of my static meshes.
If I import a mesh that my Modeller have made into Rocket and the model is a Static Mesh it will not be lit up by any lights. The models work perfectly fine in the UDK.
The models are FBX format.
EDIT: It seems that all other types of meshes don’t have this issue. Only Static Meshes.
Just in case anyone stumbles across this whilst looking for an answer to a similar problem… I found some meshes would go black for me in my level, but then moving them to near other meshes sometimes fixed the problem; I found various (tree) meshes weren’t completely encased in a lighting importance volume (the volume had to be quite a lot bigger than the tree) but anyway, this fixed it for me (in 4.14)