Hi Steve, so the result you see there is actually fine.

The little gap that you're worried about is just a display artifact, your actual solid and surface does not have any gap at that point.

In order for a surface or a solid to be displayed on the screen, it needs to be broken down into a bunch of flat triangles, because your video card hardware does not know how to directly render full surfaces, the video card only knows how to process triangles.

So anyway, surfaces are broken down into triangles in order to be displayed on the screen, and if a somewhat lesser number of triangles was used in a certain area, that can lead to some display artifacts like you're seeing there.

That's just something to ignore - it does not mean that your actual surface is like that, and if you export to a mesh format you can crank the polygon export up to a higher polygon density to generate more polygons in that spot if you want.

You may see those kinds of little display artifacts from time to time, and if it looks really messed up like things leaking out past their normal boundaries then that can be a cause for concern about the structure of your model, but just a slight amount of polygonal profile like that is not something to worry about, it's just that you are seeing some of the flatness of the triangle display mesh.

It's also important for MoI to generate the display mesh very quickly so that you don't have to wait around a long time for it to be regenerated every time you edit the model, so that's why it doesn't try to do enough work to totally avoid all those kinds of display artifacts - that would have a bad side effect of slowing down the display quite a lot.

So it's kind of a side effect of having a quick display that can lead to those kinds of small display artifacts. That's why it's just a normal thing and not a cause for concern on its own.

- Michael