@Black-Square Haha all good man - yea and I am not saying it's not me that's the problem with loading or a selection in the CDU or something lol.
I have NAV source set to VOR. I enter the departure airport to say NZWN, click button by yellow 'enter', then again by 'OK', but when I enter OH for Ohakea VOR in next line and try to hit 'enter' button - nothing happens at all. Almost like it is waiting for at least a 3-letter waypoint name.
But yea no rush or anything, aircraft still tunes up the VOR's correctly, both manually and in auto-tune in RTU, and displays correct identifier etc. on displays and maps. So can still navigate by VOR, just not as an actual waypoint in the FLT PLN.