Hi 4rw1n, looks like it could be a bug in MoI's mesh generation, strings like the -1.#IND000 are used for certain special floating point values that aren't regular numbers. They can result from the program reading from uninitialized memory or things like division by 0.

Can you please send the .3dm model file to me at moi@moi3d.com so I can test it over here and fix the bug?

If your model has extremely large or small coordinate values that might also be part of the problem.

- Michael