Here’s what I mean about pocketing rather than contouring. Typically, you might want to cut out your shape using a contour tool path, possibly placing critical tabs if you are cutting all the way through
My alternative suggestion is to use the offset vector function (which is my new favorite carbide create feature. I saw it in V7 and discovered it was there all along.) I highlighted it in red here under transform
Set the offset to a bit wider than your cutout bit (for 1/4" I like 0.3 inches).
which results in this path
Select this and the original path and create a pocket tool path
You’ll see that essentially the bit is going to have travel twice as far, but by creating a slightly wider contour, it enables better chip clearing and drastically reduces the odds of the bit grabbing your stock. The chances are greater the thicker your stock is so if you are contouring out a shape in thick stock, I definitely recommend trying this. While it will take twice as long, that’s less time than ruining your piece and having to do it again.