Boundaries

I'm working on a contour cut of an island.

The 3d model has boundaries within the final vector shape.

The software Vectric V carve pro is cutting these boundaries within the vector shape.

I want the model boundaries to not be cut.

I cant figure out how to do this.

Here is a pic , he oval is the final vector shape , you cabn see the 2 cuts at the extreme left/right of the oval.
https://i.ibb.co/KxYnzd7/IMG-6327.jpg

Have you tried moving those boundaries to a new layer and then turning that layer off before you click on calculate for a new toolpath? You could also use a third layer if you wanted to specify different boundaries.I like to use different colours for boundary or construction layers to save complications.