Surface geometry gets distorted when I import?

[ryanksd@gmail.com]

There is surface geometry that I assigned a different material to in Solidworks. A typical practice I use when wanting to assign separate material in Keyshot. But this time the surface geometry is tesselating and distorting after importing? What am I doing wrong here? pictures included. The (green) highlight is what i am trying for. but every model after this one (yellow) is getting messed up when i import.