If you build and run the unmodified Simple Island App, and then quit the app, it crashes. I'm not sure if this is helpful, but here is the stack trace: [Stack Trace.txt](https://github.com/microsoft/WindowsAppSDK-Samples/files/13468321/Stack.Trace.txt) I'm using Windows 11 23H2, Windows 11 SDK 10.0.22000.0, Visual Studio 17.8.1, and Windows App SDK 1.4.3 (1.4.231115000).