There appears to be a scaling difference between the central body shape model when run on a Mac versus a PC. The 3ds model was created on a Mac using Blender and appears correct in the OrbitView window (nominal radius ~2.5km). The central body appears to be 290 times larger on the PC compared to the actual shape. Setting the 3D Model Scale in the Visualization properties tab to 1/290=0.00345 fixes the issue. Will send shape model file and images to developers in a separate email (competition sensitive).