Hi d3 - yeah it looks like with your added points there it changed the curvature slightly so it gives a different kind of display mesh.

But like I mentioned previously - it's just a display artifact and not an actual problem with the geometry.

So there isn't really any reason to try and "solve" it, it is something that you should just ignore. There are some situations where the display has some minor glitches. That's actually common in many CAD programs to see some traces of the meshing that is done for the display.

Often times MoI tends to display things at a very high quality level which I guess makes glitches like this stand out.

I do expect to improve the display in the future, but it's just the display - not something to worry so much about.

- Michael