Opening your KBFICYOW01.pln from PFPX works fine in PF3 here, no errors.
(and I have used other plans from PFPX, too)
Do you use the PF3 demo or the release version?
Edit: Loads fine in the demo, too, but of course refuses to connect, because it is longer than 200nm.
I can open it in P3D too. No problem there. I even tried altering the plan in P3D and resaving it as another flightplan. PF3 won't even open a plan created in P3D.
I have the registered version. I'm a PFE user, so I had no qualms in buying the new version.