Substances look as plain colour on more complex models.

Hello, I just managed to get the Substance Plugin working and as shown on the screenshot below for some reason the model I want to visualize the substance on gives this look. The material works wonderful on spheres but not on this.

The model has 120k triangles. I wonder could it be the reason? If so I wonder how can I cover the surface of a complex with the substance which has displacement?

Can’t tell how much I would appreciate a quick help on this, thanks very much!