When using DX12, the UWP player throws exception at the end of window re-sizing.

Repro:
1. Create a new empty project
2. In Player Settings, uncheck "Default is Full Screen" under Resolution and Presentation
3. In Player Settings, unckeck "Auto Graphic API" and select Direct3D12.
4. Build and launch player on ARM64 device.
5. Resize the player.

Expected: Resizing player window does not cause exception or freeze.

Callstack:
> UnityPlayer.dll!D3D12SwapChainBase::RecreateBackbufferResources(int width, int height, bool sRGB) Line 423 C++
UnityPlayer.dll!D3D12SwapChainBase::Adjust(int realWidth, int realHeight, int width, int height, int refreshRate, bool fullscreen, bool stereo, int vsynccount, bool initialization) Line 521 C++
UnityPlayer.dll!AdjustPrimaryD3D12SwapChain(int realWidth, int realHeight, int width, int height, float compositionScaleX, float compositionScaleY, int refreshRate, bool fullscreen, bool stereo, int vsynccount, int & outBackbufferBPP, int & outFrontbufferBPP, int & outDepthBPP) Line 609 C++
UnityPlayer.dll!ScreenManagerMetro::SetResolutionImmediate(int width, int height, FullscreenMode fullscreenMode, int preferredRefreshRate) Line 187 C++
UnityPlayer.dll!metro::ChangeWindowSize(int width, int height, bool fullscreen) Line 153 C++
UnityPlayer.dll!UnityPlayer::AppCallbacks::PerformWindowSizeChange() Line 1403 C++
UnityPlayer.dll!Platform::Details::__abi_FunctorCapture<<lambda_b09b1cfee68cc59caf707efab8a36bd6>,void>::Invoke() Line 889 C++
UnityPlayer.dll!UnityPlayer::AppCallbackItem::NonVInvoke() C++
UnityPlayer.dll!UnityPlayer::AppCallbacks::ExecuteQueuedCallbacks() Line 479 C++
UnityPlayer.dll!UnityPlayer::AppCallbacks::_AppThreadImplementation(void * param) Line 177 C++
UnityPlayer.dll!UnityPlayer::AppCallbacks::_AppThread(void * param) Line 258 C++
kernel32.dll!00007ffc928f5ba4() Unknown
ntdll.dll!00007ffc93c50424() Unknown