Heya!
In your screenshot it just looks like youre just outside of the chart map. There is no enroute map yet, this will get added in the future.
Some other inaccuracies with the EFB map are known and will be fixed 🙂
Heya!
AppData\Roaming\Microsoft Flight Simulator\Packages\inibuilds-aircraft-a300-600\work\flightplans for Steam
and
AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalState\packages\inibuilds-aircraft-a300-600\work\flightplans for MSStore