@dc42 ran the same code a second time, this time on the start of the last segment:
Line 423: G1 X263.075 Y-0.997 Z-7.000 F300.0
it never started this line, instead went diagonally towards zero i guess.. so happend 3x in a row - i was lucky that it is plywood and it did not break anything important, but there seems to be a real problem with this latest RC..
It never reached the last line, Line 424: G1 X263.075 Y-0.997 Z10.000 F1200.0, (the Z-Lift)
I also have a second job, here: 4Holes.gcode It runs before the main cut, and never has any problems. I guess the lines are too short to have any effect with the segmentation.
Here my config.g in case that helps (there is also the M669 S10 command)
config.g