Engraving starts, but stops right away

I used Lightburn on some pens and then it stopped working. It would flash the laser and stop. I switched to the GRBL program and was able to burn an image with no issues. I changed back to the Lightburn program and tried to burn an image and the same thing happened with the flash and stopping. Since I was able to burn in GRBL, it doesn’t seem like a hardware issue, but I don’t know what happened with Lightburn that it won’t work now.

why don’t my ortur master 2 laser work with lightburn it keeps saying busy

When it stops, do you see any messages in the console?