I have an Arduino UNO clone running GRBL v. 0.9 on a CNC engraver. I am trying to get it set up. I keep running into issues with it randomly changing parameters or acting like it has. I am using GRBL controller 3.6.1 which came with the tool. I have reflashed the GRBL hex file with little success. This is my first CNC experience. It's a lot to take in all at once. I have seen GRBL v 1.1 on the web. Is this version better?