Thread:BunsenH/@comment-26971439-20170701173335/@comment-24577221-20170702154131

Interesting. I'd guess that the main project file for a monster consists of a bunch of layers, one for each of the body parts as one sees on the image sheets. When all of the layers in the project file are visible, each is superimposed, building up the monster from back to front. But someone has accidentally saved the project file with the layer for the fourth eye hidden/invisible, so any images that are generated from that file show only three eyes.