It seems like with the most recent AIRAC update I’m having the ghost north pole waypoints again after loading a .pln file. Everything worked fine last week, and I did not uninstall any of the WUs.
First, you don´t have installed all World-Updates and second the flightplan was created with an old/outdated AIRAC cycle. But in both cases, the mentioned sub-node is missing to work with custom-waypoints. MSFS has here his own logic and don´t need it, it seems but all other 3rd party flightplanning tools need this sub-node to work properly.
I have changed your original flightplan now and have added the missing node. Please try this one, it should work now.
I assume an issue in MSFS … but we can’t look deeper into it, or debug it in detail.
The only what we know (and what we also added) was the missing sub node, what we have fixed in our charts. So when you plan and export the flight via our chart app, you cam be sure that the flightplan works as expected.