Summary
In issue #1689, the GetApplicationScreenSize method in .NET was updated to use the getApplicationScreenSize command directly, instead of sending the CallStaticMethod command. This update fixed compatibility for Unreal Engine apps.
However, this change was only applied to the .NET implementation. The Python, Robot, and Java bindings still use the old approach, which causes GetApplicationScreenSize to not work properly with Unreal Engine apps for those languages.