Exported objects looks ugly (screenshot provided)

 From:  OlaHaldor
I have a total of 11 very detailed models from a manufacturer, and I need to convert from STEP to .lwo.. No problem, 8 of the 11 has been spotless. The last three models however are having problems with such things as the one depicted below.

Simply put, I'm missing loads of polygons. I've tried different export parameters with no change at all. It differs from model to model what's missing. Some times it's wheels, other times it's handles, like in the screenshot above.

The fun part is that the preview of how it will look with polygons in Moi3D is spotless. Clean and nice.

Have any of you encountered this before? Michael?