Problems with either Fusion360 or Linuxcnc

UPDATE

Well I have fiddled with a bunch of post setting in 360 and I seem to be getting g code that runs, not sure why. I had one file that would sometimes give me an error in lcnc and sometimes it would run, I find that a bit worrisome. My comment that Ctl-K did not work was correct at the time but it seems to work okay now, don't know why. I guess this is all learning curve. I have come from M3 and Rhinocam to 360 and lcnc and I have a lot to learn still. Thanks for all the help!