I have tried 2 flights that include NATs oceanic airspace crossing and have included relevant waypoints from the plan below
EGLLL ---- GOMUP 5920N 5930N 5940N 5850N YDP ----- KSFO
On both attempts flight was correctly transferred over to oceanic control at the correct point but then I was never handed back to radar control. I let flight continue until it was half way across Canada and then I tried tuning the next centre manually but all this did was trigger another SELCAL report
These FPs were created by Aerosoft FlightSim Commander 9 and PF3 detected the NATs element in them and as a result the Oceanic Command Button was disabled