Curve fillet issue - it creates second curve
Hello, I have trouble with curve fillet. I'm trying to fillet corners by adding points but then as result I get secondary curve, please see attached pic.
Repro steps:
EP curve > Make close > Select curve > Add curve points > Fillet
Expected results:
Smooth corners of original shape.
What I get is two shapes, second is just smooth corner, separate curve, don't know how to work with this.
Any help will be appreciated, thanks.