Link- The data-model linkage of the material must be set to "Data". If you have materials that are linked by "Object", it is recommended to remove them to keep things neat
Export Versionmust be at least "11.0x"
Day-Night Preview Balance- This setting provides a convenient way to preview the material in Blender's 3D View. To enable the Day-Night Preview feature, add an albedo texture (uses Diffuse->Color) and a night texture (uses Shading->Emit) to the material. Adjusting this slider sliding this will automatically adjust their preview in the 3D Viewer. It does not change the content of exported OBJs.