So I guess the corner juncture area is supposed to look like this:



MoI's fillet mechanism does not know how to do that though.

The one here I did by importing the MoI model into ViaCAD which is a different CAD program that has a more robust filleting mechanism than MoI. It can come in handy to use alongside MoI for fillet cases where the geometry engine that MoI uses is unable to figure it out.

- Michael