Sketchucam surfacing instead of cutting outside (fixed)

I am trying to generate gcode to cut a 12" wide 12 sided polygon, but all I get is surfacing of a 12" square. What am I doing wrong?

Was going to insert a screenshot, but can't figure out how to do it.

%
(A 3D Contour : Generated by SketchUcam V1.4b-8c2e)
(Bit Diameter: 1/8")
(StepOver: ~ 1/16" 70.0%)
(Spindle speed: 15000)
(FeedRate: 100")
(Material Thickness: 1/8")
(Safe Length: 30")
(Safe Width: 48")
(SafeHeight: 3")
(NOTE: Z zero is top of material)
G90 G20 G49
M3 S15000
G0...

Sketchucam surfacing instead of cutting outside (fixed)