Im having the same issue. It starts loading a flight, then stops about 70-80% and gets stucked. I have to force the app to close then.
Did a fresh reinstall of the sim and no improvement. Community folder is empty. Cant use the sim
What I recall doing just before this happened was putting a space here:
Then my sim got stucked on loading flight screen. When I reverted back it didnt help. Neither did the reinstall.