Works fine in fill mode. This does not happen in vcarve when doing on the path with the no z post-processor. This started after I reloaded my laptop with the latest light burn so I suspect it is a setting I am missing.
GRBL 1.0c
Jtech 3.8w X-Carve
Lightburn 0.9.07
Gcode Sender CNCjs running off Raspberry Pi
S-Value Max=255
I don’t think 1.0c supports laser mode, if I recall. Larry modded it so it doesn’t turn off the beam during G0 travel moves, which is just… bizarre. You would need to use the GRBL-M3 profile in LightBurn to work with that firmware.