AutoCAD Inventor :: DWG Not Plotting Shade View From It?

What it boils down to is that I'm the only inventor seat and need to use dwg for layouts in my work environment so that others can edit notes and print if needed.  We also always plot to pdf and then print hardcopies as necessary.

Many of our drawings require ISO/axon/perspective views of models, and almost always shaded views.  I can plot from inventor without issue, but when I plot from autocad, the shaded views plot only partially shaded with the rest wireframe or completely wireframe.  I attached a pdf example.  The view on the left should appear shaded the same as the views to the right.

I've adjusted every print setting I can think of, set shaded views to offline only for using bitmap, and tried low, mid and higher resolutions for the bitmap dpi setting.

We have product design suite 2013 and I'm on a windows 7 x64 machine.