Wireframe:
Not Really much to say, I am using blender and use the smooth surface so that the models don’t look low poly. Anyone know how to fix the shadows/shaders without making the model high poly?
This is model and/or material problem not engine.
Looks like you dont have any lightmaps set to your mesh.
Try setting your mesh as “movable” and see if you have the same problem.
Sorry it was just that it did not have a UV map 
I should have known, just forgot about the UVs sorry
I have the Smart UV Map on my blender model and I’m having the same issues… i’m super confused…plz help.
Try increasing shadow map resolution and add more vertices to the mesh so that the polygon size is more even and not so stretched, for example for my model I would do this :
http://prntscr.com/n2oyhe
Not tested it but might help fix it 