LOFTED CUT MAKING STRAIGHT LINES

In sw 2015 when I was making a lofted cut the lines created between the 2 profiles where straight.  Now in 2021 the are curved splines.  When I try to use this profile for wedm machining the curves make the programmation impossible.  Do you know how to force the jonctions between the 2 profile to be straight?  In the image below u can see in the right bottom the arc lenght propriety.  Proving the line is not straight but a curve.

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