Hi, I can flash GRBL 0.9 to my xPRO just fine. In fact it has had that on it for 2-3 years, and flashing it again works fine. Now I want to try to use OpenbuildsCONTROL. That software tells me I have to use GRBL 1.1x. So I downloaded 1.1 and spent the next 6 hours of my life dealing with obscure error messages, and trying a huge number of things. Flashing the hex directly, compiling and flashing GRBL 1.1 in Arduino software, and trying various combinations of parameters. I have come across so many different nondescript error messages I don't know which ones to start posting. Then I go back to flashing 0.9 and it works fine again. But let me first ask -- should this work? Is xPRO v2 even compatible with GRBL1.1? If it's not I can give up. If it is, I will post some more info about what error messages I'm getting and what I've tried.