Mhh, must be a problem with the exported obj. file. Can you send me the obj file to support@unionbytes.de. I will look at the weekend on it. Do you export it with Blender?
Thanks for gettin' back to me! I was able to resolve the issue today, confirmed it was an issue with my obj export. I'll send both the OBJ's along if you're curious to compare them. They're exported from Maya (I think the issue was an unexpected type of material/shader).