Why Lightburn can't, but Laser Box can?

So after many many failed attempts I finally have my xTool D1 engraving photos on slate by using Laser Box rather than Lightburn.

Obviously I would prefer to use Lightburn due to its extensive features, but why can’t it engrave photos on slate?

I tried all manner of settings after importing the photo from image-r but wasted coaster after coaster.

Here are the failed attempts in Lightburn followed by the correct output from laser box.

2 posts were merged into an existing topic: Trouble engraving photo on slate