My laser had a hiccup, sort of

Assuming you don’t have a very long USB cable and that is the cause, have you tried moving the job within the bed of the machine to see if there is something going on with boundaries? Have you looked at the gcode and found line 52 to see what it is? Maybe post the code here for us to look at.

error 9 is a homing error it seems. here is a link to another thread on the subject.

Cheers

David