Good day, I am new at lightburn but cannot seem to figure out how to fill inside the HB and the lines so it will engrave the HB but leave the letters and the inside D shapes of the B untouched. Anytime I fill, it just fills the letters and the inner sections of B. I have also attached the image that I am trying to engrave. I want to essentially engrave the white portion. Thank you for your help in the matter!
In addition to the multiple duplicates atop each other, the shapes are not closed, so they will not fill. Delete all duplicates, then select everything and hit Alt+J to Auto-Join into closed shapes.