With the new version of LightBurn v0.9.12, the center Job Origin selection is no longer working - it defaults to the upper right. This worked in the previous version. The other corner choices work as expected.
This is with the Marlin device type to produce .nc files.
Check your device settings - A new mode for Marlin was added to support ‘Inline’ power commands. If you have that enabled it would probably make the first GCode command emitted not work.
Can you post the file you’re trying to use? I’ve run a few simple tests with center origin and they all work, so we’re not seeing the same thing. I’ve also run my samples in this online viewer, and all the center-origin files look right: https://nraynaud.github.io/webgcode/
Just doubled checked - that “comment” is affecting the positioning. It could be a UCCNC bug of some sort I guess, but that would be beyond strange. LOL
That’s bizarre. I added the comment because SnapMaker can use that comment in the header for framing, but it’s not interpreted in any other way (nor should it be - it’s a $*%g comment!)