Success in flashing the mainboard (4.2.7) on a straight Ender 3 with Nebula bin file. Went through the original installation on the Nebula pad and all worked well. When shutdown and repowered the Nebula appears to not know the correct way to talk to the 4.2.7 board. When requesting a homing it comes back with a 2022 error. The only work around I found is to restore the factory defaults on the Nebula and go through the start up procedure. Nothing is required on the 4.2.7 board. What am I missing?