urgent bugfix
fixed newly introduced error when applying heightmap
only supports grbl 1.1
Update: added new Exception Handler for unhandled exceptions
This will only benefit few people, so I'll just add it as an extra zip file "OpenCNCPilot_1.3.1_EH.zip" instead of a new release.
If you are new here, use "OpenCNCPilot_1.3.1_EH.zip", as it will give more detailed info about fatal exceptions.