Today I have added some more options to ModelConverterX, this time different render modes for the preview. Before you could only render the object as it would show in FS, but now you also have the option to only show the faces (no textures) or to show a wireframe view of the object. I some cases these different render modes might help to figure out what is going on with your model.
As you might have noticed I am trying to fix some of the open issues with ModelConverterX, so that I can release another stable version. Apart from a few items the list for version 1.1 is empty now, so after that I will focus more on the gPoly tool.