Lightburn will do about 20% of an image file, and then hangs.
I am using Ubuntu 20.04.3 LTS and Lightburn 1.0.4 (also same result on 1.0.2).
The laser is an Ortur Laser Master 2.
I really want this laser to work - I have already trashed the shipping box.
I notice that slow power levels will also cause it to hang.
I have the debug code from the clipboard, if that helps.
Waiting for connection…
[MODEL: Ortur Laser Master 2]
[DATE:11:17:25 - Dec 28 2020]
Target buffer size found