Spent about an hour looking for errors.
Did not find any.
Finally tried to Chamfer the extruded star with MoI regular Chamfer command. It DOES NOT do two distance fillet on the extruded star.
So Chamfer3 is working as well as its incomplete programming can do.

A star border curve CAN be Chamfered with two distances in MoI.
So it should probably be considered an incomplete node, that only works on solids(?)

This Chamfer3 script is not multi-process, and does not do curves.
Other, less old Chamfer scripts, can chamfer a star border curve, with two distances.

- Brfian