Fullscreen Setting Crashes

Windows 10 install here. When I uncheck the setting to take the game out of “Fullscreen mode” and then apply the settings, the game crashes/closes unexpectedly. When I start it again, it’s still in fullscreen mode.

I think we might have a bug here, which I will try to take a look at next week. Does the game work in a window ok if you select a smaller window size than your desktop?