I see that I may not be the only one to observe this in LightBurn. My laser is connected via network cable to my home network. LightBurn is running on my MAC (connected via WiFi to my network). What I am about to describe worked flawlessly in the past. I am cutting some pretty large sized invitation cards (lots of frilly detail, all cuts, no images or filled areas) on 19" x 25.5" cardstock (3 per sheet). Anyway, after the job finishes, I prep the next sheet and hit the “Start” button and get the titled error. I have tried resetting the Laser (power off/power on, Esc key on Laser, and Reset Button on Laser) which doesn’t seem to have any effect. I have tried the “control click” or Right Click thing and it says Found RDC644XS but still seems to think the laser is “busy”. I have used the positioning tool and the laser responds but still reports the error when I click Start. Closing LightBurn and waiting a few minutes seems to “fix” the problem at least for one more job but I really don’t think I should have to close the program and wait for a period of time for the software to begin talking to the controller - as I mentioned, running one job after the other worked flawlessly in the past. This really has me puzzled. Not sure where to start looking.
MAC is running Mojave 10.14.6, LightBurn v0.9.07.