Fengrave help

I’m trying to make this sign.
So I’m using fengrave and I’ve created this.
How do I go about adding the stars at either end? Fengrave exports dont show up in any program I’ve tried.

I’m also getting these extra carves

What am I doing wrong?

On another note I finished building my lowrider and couldn’t get it perfectly straight but I had it assembled and cutting. I was getting crazy chatter. I had the xz backwards of course.