Lightburn didn't burn the chosen layer, then locked up left right travel

Loaded TwoHearts graphic to burn.
Set the travel and power.
Selected base layer to burn fast.
Ran frame, all was well.
Hit burn and it started to burn the lace cutout layer and not the selected base layer.

3/4 of the way through the burn, the left/right locked solid.
It would move forwards and backwards but not left or right.
Turning the machine off and back on again, it was still locked.
Turning the machine off and then after a few tugs it moved freely again.
Also it made a strange sound and the laser pulsed as seen in the video.

Can you post your file?