Used the Lightburn demo. Started with version 0.9.02. Then gradually updated to the most recent version 0.9.09. Everything worked well. Then I bought a license for the GRBL controller. Launched a vector image for engraving and cutting. What happened can be seen in the picture.
This is not the same as the original, as not all lines are burned (marked in red), but the preview shows everything correctly. Installed version 0.9.08. Launched the same file, everything turned out as it should. I think this is a problem in version 0.9.09. What do you (Lightburn developers) have to say about this? (My GRBL 1.1F controller with M4 support).