By default, the job is continuously repeated on a freshly installed Atomstack M4 (with its provided BslCAD.cfg).
Tested on LightBurn v2.0.00 RC3.
The problem was already mentioned in Atomstack-m4 The Start/Stop suspend buttons do not work correctly but the solution was IMHO not correct.
We can observe that if we keep the physical “Repeated Work” button of the device, the problem disappears.
Therefore we need to invert the logic of that button.
To do so, go to Device Settings / Ports and laser settings
and change “Start Marking: 2/high” to “2/low” then confirm with Ok
The problem is fixed and we can still use the button “Repeated Work” in the intended way.
It would be nice if somehow LightBurn could preset properly that parameter when an Atomstack M4 is added.