Finally, Little Nav Map Dev & users have found the cause of the User Waypoint moving to the North Pole, and now can export a MSFS flight plan (correctly formatted to prevent the North Pole issue, when Navigraph is loaded.)
The need to have all the Would Updates installed, to prevent the North pole issue with user waypoints, would appear to have been “incorrect” !!!
It looks to me as if the solution was to include a “fake” ICAO code tab ???
Anyway, after a great deal of wasted time, loading & re-loading World updates, the issue seem to be resolved, at least for FPs generated by apps like LNM.
The World Map, still does not seem to be capable of generating FP with user Waypoints, that can be saved, and then loaded back in again, but hopefully Asobo/WT will address that one day.
Thank you “LNM” and “eaidea”
Fix in flight plan export for MSFS where several waypoints are moved to North. Thanks to Github user eaides for the hint. #1038