I’ve used the Luban CNC mode with an a couple SVG images that have worked out more or less like I wanted (assuming I’d actually chosen the bit that I told Luban that I was using). So today I tried something a bit different, using a png image I wanted to do a relief “print” to put a half inch round bevel on a piece of wood. I can load the image into the editor without any problem and when I press process it goes to the process page without any issue. I set up the parameters and find that apparently it won’t let me generate g-code with first doing a preview. I do the preview and after hanging for a couple minutes saying “Generating Tool Path… 0%” Luban crashes.
Here’s the image I’m working from: