Xtool S1 with 2w1064 IR head, Lightburn 1.7.4 wont process and offsets need to be changed for 40 w

something in the machine is sending that cancel alarm. I don’t have the IR head so I am not sure what it might be.

It looks like you are running the GRBL device file that xTool sends. Have you tried running with the new xTool protocol?