Lightburn no me guarda la configuración de las capas

[parsec (FerAS)]

Enable Console window

In Console window:

1. Type $I press enter
2. Type $$ press enter
   
   

Copy/paste here the Console output in a new post, you have your device set as GRBL-M3 maybe you need to change that to GRBL.

Maybe you´ll want to read Lightburn documentation:

Getting Started - LightBurn Documentation