Weird Lightburn behaviour when engraving arcs and circles

Hello everyone, I’m new to laser cutting and engraving and I’ve encountered an issue with my Neje Max 4 with extension rail fitted. While I was sucessful at getting the laser oriented and correctly sized ($131 value set to 1030mm) I’m having issues engraving curves. It is completely out of whack. The curves are jagged and circles are not circles at all. I tried reinstalling Lightburn, deleting (resetting) preferences folder and resetting GRBL settings on my laser.
The problem lies in Lightburn and/or GBRL communication because Neje software works flawlessy when it comes to curves.
I’m attaching photo of the problems alongside screenshot of machine settings. The device is set up as GBRL and the problem occurs when using either USB or Bluetooth connection.

Machine settings screenshot

Hopefully someone can provide some help because I’m baffled.
Thank you in advance!

The problem is that you are using a pirated version of LightBurn. It’s the copyright-protection function that destroys your output.

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