I’m afraid we’ll need more information to investigate further.
If possible, could you please send me a screenshot of what you see in the Glowforge app when this happens?
To take a screenshot:
Mac: Press Shift-Command-4 and click and drag a box around your image. You’ll find the screenshot file saved on your desktop.
Windows: Click on the Start Menu and type “snipping tool”. Open the Snipping Tool > New then click and drag a box around your image. Click the Save icon and name and save your file.
Send us the screenshot, and we’ll be happy to take a look.