Yesterday I wanted to engrave again after a while. I made one piece of engraving 40x 40mm without any problems from lightburn, but then it wouldn’t engrave normally anymore. Parts of the engraving were missing. After a while the focus light also disappears, but when I start the laser, it turns on. I also changed the laser head but it’s the same.
What could be wrong, I have a Neje 2S max laser