Run the app. It displays fine. Minimize the app, right-click it in the Windows taskbar, and choose Close window. The app closes.
Run the app again. This time it starts minimized. Restore or maximize it, and the map is blank. Instead, the map should display. Now try to load a mission XML file, and the app crashes. Instead, it should either load the mission properly or handle a failure gracefully.
Make a mission XML file if you don't have one.
Run the app. It displays fine. Minimize the app, right-click it in the Windows taskbar, and choose Close window. The app closes.
Run the app again. This time it starts minimized. Restore or maximize it, and the map is blank. Instead, the map should display. Now try to load a mission XML file, and the app crashes. Instead, it should either load the mission properly or handle a failure gracefully.