Simple Rectangle has a radius on all edges ... strange

That does look easy! Nice.

Andy, Thanks for pointing this out. If possible, can someone point out which lines of code affect the default state when a running file is aborted?
I understand an NGC file can be run on abort to set the behavior and that is defined at this point: github.com/LinuxCNC/linuxcnc/blob/b7673f...s274ngc_pre.cc#L2626

What I could not figure out though is, if "ON_ABORT_COMMAND", is not found in the "RS274NGC" section of the NGC file, then where will the default state on abort be set.
Regards,
automata

AFAIK, The default state is what ever state your former running g-code left it in when it was aborted or ended.  (In other words there is no default state on abort.)

This is why a good preamble that sets up the proper machine state is so important. Unexpected offsets, and even canned cycles could still be active, and should be canceled or reset by the new file's preamble. Why are people so resistant to using a proper preamble.in their g-code?  This isn't just a Linuxcnc thing most industrial cnc controls behave the same.