A350 Laser engraving camera not working

Another issue. I want to do laser engraving, the Calibration worked fine once I closed the enclosure. I clicked Camera Capture in Luban 3.10.2. The first picture is with the closure light off, the second is with it on. The third is after I click confirm. Am I doing something else wrong? I’m not seeing the work surface. Yes firmware is at the latest.

Not that it really works even when you get it working…

Trying putting something on the bed. Piece of paper or something.
People on FB have reported it having problems when it’s only (or mostly) seeing black.