What @geek2nurse said - but I will add - do not pull your work out of the Glowforge until you’ve verified its cut out. You should be pinning your material down with something, and then when the cut is done open the lid, and with a piece of tape, or tweezers, or something pull out the cut pieces. If anything doesn’t come out easily you should close the lid and run your cut again at a slightly higher speed with no adjustments to the location - literally just set everything that you don’t need run again to Ignore and click print for the ones you do.
Especially when your optics start to get dirty this will save you from wasting material.