Under QtActivityBase.restartApplication(), there's a call to Runtime.getRuntime().exit(0) right after calling quitApp() which starts the Qt app cleanup and might involve some async operations, so calling exit() right after that might not really give enough time for the cleanup to happen.

Occurs on activity re-start like orientation configuration change when coming on top from background or when activity is activated. Causes either restart or exit or stay in the white screen.