MacBook Pro (2010) running OS X.9.5
2.8 GHz Intel Core i7
4GB 1067 MHz DDR3
NVIDIA GeForce GT 330M 512 MB
Running FlightGear 2017.1.2
When I try to run the Preflight tutorial, once I unpause the simulation, the plane starts rocking and spinning violently and ends up flipping upside-down. What is going on?