[Engine] Calling game.Exit() in a game running in Fullscreen mode causes an unhandled exception error on exit.

Release Type: Official Release

Version: 4.1.0.1948

Platform(s): Windows

Describe the bug
Calling game.Exit() in a game running in Fullscreen mode causes an unhandled exception error on exit. It appears the render device is resetting back to it's default windowed resolution on exit of fullscreen, and is trying to reload assets which have been unloaded by the game as it exited.

To Reproduce
Steps to reproduce the behavior:

1. Set game.Window.PreferredFullscreenSize to a size different to windowed resolution. I use:

        GraphicsOutput[] array = game.GraphicsDevice.Adapter.Outputs;
        game.Window.PreferredFullscreenSize = new Int2(array[0].CurrentDisplayMode.Height, array[0].CurrentDisplayMode.Width);
   

2. Set game.Window.IsFullscreen = true;

3. Call game.Exit()

Expected behavior
Game to exit silently and successfully.

Screenshots

Log and callstacks
N/A

Additional context
I have a simple project available which shows this issue here - SimpleFullscreenCrashTest.zip.

I have confirmed the issue using both normal fullscreen and 'FullscreenIsBorderlessWindow'. Issue occurs whether you run from editor, Visual Studio or from a build file directly.

I upgraded a game from 4.0 which did not have this issue to the version 4.1.0.1948, and am now experiencing this in that game. I also have a game that has only had this issue since upgrading to 4.1.0.1948 from the previous patch suggesting this is a new issue in 4.1.0.1948

Start with the provided SimpleFullscreenCrashTest project on Windows and reproduce the failure by setting game.Window.PreferredFullscreenSize, enabling game.Window.IsFullscreen, and calling game.Exit(). Trace the fullscreen render-device reset and shutdown path; done means the game exits silently without an unhandled exception in both normal and borderless fullscreen modes.