Hi, Hoping some one can help me. I have an X-tool D1 pro 20w, I am using Lightburn. It has been working fine now all of a sudden when I go to start burn, the green line that shows the progress of the burn, jumps from start to finish in seconds. The laser will burn for a minute or 2 then stop. I have not changed anything from the last time I used it.
I can not find where anyone else has had this problem.
I am running windows 10 on a desk top.
Likely you donât have a unique issue.
If you can post the .lbrn2 file it would be niceâŚ
Does the output look anything like your artwork?
Are there any error messages in the console window?
Are you sure itâs not in line mode when you want fill?
This is the file that the problem started with, but it is doing it with everything I tried.
LockingJig_Teeth.lbrn2 (47.0 KB)
Hope I put this in right.
I have lightburn on 2 computers, desk top ( i use most ) and laptop. Both having the same problem.
The laser is downstairs, so there is a long cable connecting to computer, I took the laptop down and connected with a different cable, same problem, so I know there is no break in the cable. I switched the 20w back to the 5w, same problem, so thatâs not it.
There is no error message,
the output, when I got it to finish, ( I had to make the speed 20 and power 100) it does.
Dose the laser window show ready until you send it to the laser?
Does the console show any errors?
It does show ready, there are no error codes. I tried downloading the program on my newer computer,(windows 11) thinking maybe the upgrade was not windows 10 compatible. It worked fine for one try. now when I go to burn, the program shows burn time in negative numbers, and the laser goes off the wood to the bottom right corner and stays there. Is there a way to go back to the old version of lightburn? I can do my projects in X-tool design space, but I paid for lightburn, I know how to use lightburn, (when it worked), and I liked it.
Likely something missing during setup⌠Give this a tryâŚ
Sing out if you have issuesâŚ
Weâve changed a few things since then. 
What youâre describing seems more like settings than version-related behavior.
If you do a brute-force search on your other computer looking for lbprefs youâll find the last 50 or so copies of the prefs file with a date in the file name. Select one with a date corresponding to when things worked well for you.
I recommend that you copy that file onto a USB stick or email it to yourself. (or both)
Itâs good to have a backup copy of that file outside the computer.
Download the file from your email into the new computer or copy the file off the USB into âdocumentsâ or some other convenient place on the new computer. Itâs best to have the file saved locally. We occasionally see âoddâ behavior with files on external storage, shared storage or cloud storage (OneDrive).
Launch LightBurn on your Windows 11 machine (without loading a project), Click File, Preferences, Import Prefs and import the lbprefs file.
LightBurn âshouldâ behave on your new computer exactly as it did before on your old computer.
The reason for the âQuick Finishâ is most likely the switch in the Laser window labeled âCut Selected Graphicsâ. If itâs on and only a small amount of the project is selected it will execute that small amount very quickly.
Another reason a project might be completed quickly is in the Cuts / Layers window. If you turn off layers that you intended to send to the laser, it wonât send them. Check to make sure the relevant layers are on.
Some of the settings remain in the project you saved so you may need to check the above after importing prefs.
If itâs still not behaving identically, we can compare the GCode output on each computer and see whatâs missing.
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Iâm sorry if I am reading this wrong, to me it sounds like you are saying there is a problem with the file I am trying to burn. Lightburn is not" âburningâ anything. The green light runs through the line in a second, and the laser does not move. If I slow down the speed to 20, and the power to 100 it sometimes burnes, but the green light still shoots across the screen. This is happening with old and new files