Is anyone else encountering the subject issue?  I tried asking Autodesk to roll back my Fusion360 version but they point blank refuse and are adamant the issue is on the Artsoft end.  I've tried numerous earlier post processor versions namely 44063 & 43751 but that doesn't seem to change anything I also tried one downloaded from a forum but have no idea which version it was.  I've also attempted copying and pasting the post processed .tap file into a new text document and saving it out as a .txt file but this doesn't work either.  Curiously I have examples of almost identical gcode from before this Fusion360 update which load up fine in my Mach3 session!  This is driving me absolutely bonkers!!!! HEEEEELP?!!!!

Looks like Mach3 didn’t like the folder structure I’d created when posting out my next set of programs. I moved the gcode up one level and it worked fine again! Thank goodness!!!