Open up the object mesh file and set the light map cordinate index to 1, that typically fixes it for me. If it is a custom model, if you use blender just go to edit mode and press U to unwrap it and then export it from there and it should work.
Open up the object mesh file and set the light map cordinate index to 1, that typically fixes it for me. If it is a custom model, if you use blender just go to edit mode and press U to unwrap it and then export it from there and it should work.