Cutting stops mid stream since updating to 2.0.04

LightBurn Software Questions
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1

As the title says, it stops mid stream. It happened after upgrading both PC’s.

Here is the set up:

Two different lasers.

Two different PC’s (Windows 10 and Windows 11). Both updated Lightburn.

In all cases, regardless of the file it stops mid stream. Tried some simple cuts like a square. Even just moving laser it stops randomly.

Reported the following errors:

Alarm 3

error:8
Grbl ‘$’ command cannot be used unless Grbl is IDLE. Ensures smooth operation during a job.

All was fine yesterday. Today after updating, troubles arose. I’ve been working on this for about four hours so far.

Any ideas are welcome. Thx.

2

One more thing. The GUI gets stuck. Can’t downsize or upsize. The only way to close it is using Exit. This happens on both W10 and W11.

3

Can you show a screen shot of the Device Settings window for your laser, for the “Basic Settings” tab?

4

BASIC
BASIC784×615 133 KB

5

One of the few things that changed for this release was this:

image
image555×453 63.1 KB

Try turning that off and see if it helps.

What brand of laser / controller is this?

6

Laser Tree K1 PRO. 30w laser.

7

No change even after deselecting option. I used LaserGRBL with same file and it ran fine. The pic below shows what happens. It gets stuck on 100%.

LB-BUSY
LB-BUSY435×194 25.9 KB

Clearly there is something wrong with LB 2.0.04

8

Please try this:

  • Open LightBurn
  • Go to Help > Enable Debug Logging
  • Run a job you know hangs
  • Wait for it to hang
  • Quit LightBurn

In your Documents folder you’ll find a file called LightBurnLog.txt - Send that file along with a link to this forum post to support@lightburnsoftware.com and I’ll have a look through the log to see if I can figure out why LightBurn is hanging up.