Hi Metin,

re:
> I tried a little more complex, but completely manifold, subdivision-ready OBJ file, and it becomes
> a joined surface after importing in MoI using the new Sud-D function.

That's the same "very small faces getting mangled" problem that I was talking about earlier. For now if you have an object that's only about 1 unit across it will run into some problems, scale objects like that up by say 100 times before you do the import.

I've attached the result of scaling your object up by 100 times and this version should now have all joined edges when you import it.



- Michael