...but without crashing involved.
When I render with an xfrog imported object in the scene I get a random partial or complete whiteout effect. Without changing any settings I repeatedly rendered the scene and achieved different variations, as you can see in the picture. When I remove the object the problem goes away. On very rare occasions the scene renders normally and everything looks neat.
Changing quality settings (atmosphere/clouds/render/ GI) doesn't seem to fix the problem. Neither does raytracing options. Scene looks normal in the render preview. Also the magical dots during the beginning of the rendering process all have the right colors in the right places. Moving the object or changing object texture properties doesn't work.