Specular problem (Import)

Hallo, I have this problem after I import model from MOI 3D in Nvil sprcular become absolutly white.
If I tourn specular Off then On it become as it should be.

This is how it looks after import:


And this is how it looks after I  tourn specular Off then On, on every object.


.obj from MOI:
http://we.tl/mL6GBISx64

What it can be?

Fixed.

IStonia,
I have these 2 files, obj made by MoI.
I open first then merged second and if I make Undo to Undo Merge objects from first file become white. Looks like they loose materials or something like this.

Files(there is an arrow on the top to download):
https://drive.google.com/file/d/0B1uI4ljG15POdkpFZ1dnanR2N1E/view?usp=sharing

Fixed.