I am trying to engrave photos on lightburn. I had initially tried engraving some black and white cartoons for the kids, and they went fine. But then, I tried engraving a regular picture and it engraved in the negative. I tried toggling the invert selection when I look at the playback mode, etc., would still come out as negative. I went back to photoshop and inverted the image to a negative and then it printed fine.
Why did the cartoons print ok, but I had to invert the photos?