Bought the sim yesterday and loving it. Linux 64 bit. I hit enter to bring up the ATC window I then setup my flight plan - EGPF to EGPH (Glasgow to Edinburgh). I file the flight plan then hit enter again only to see the same dialogue asking me to file a flight plan, this just repeats. I then created a couple of flight plans using xFlightPlanner, setup a button on my joystick to load the FMS, I still can't load a flight plan but get the same repeating dialogue.
Doesn't matter which plane I'm flying or airports, routes or direct.