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Fixed in 2019.1

Fixed in 2018.4, 2019.2



Found in


Issue ID




[UWP] App triggers an exception when resizing UWP window after exiting XR mode.

Steps to reproduce:
1. Download attached project
2. Switch platform to UWP
3. Build project
4. Open Visual Studio Solution
5. Build Visual Studio Solution (Debug, x64, Local Machine)
6. Mouse click on the green cube to enter XR mode
7. Mouse click again to exit the XR mode.
8. Resize the 2D Window

Expected results: Window is resized.
Actual results: App triggers an exception

Reproduced with: 2018.2.15f1, 2018.1.9f2, 2017.4.13f1, 2017.4.0f1

Tested and reproduced with .NET and IL2CPP backends

Exception thrown at 0x00007FFC1990A388 (KernelBase.dll) in WindowSwitching.exe: WinRT originate error - 0x8004006A : 'DataPackage does not contain the specified format. Verify its presence using DataPackageView.Contains or DataPackageView.AvailableFormats.'.
[1.602903 / 17.352893] - OnCoreWindowSizeChanged event (607.20, 607.20, 1200.80, 900.00), m_Initialized=True.
DXGI ERROR: IDXGISwapChain::ResizeBuffers: Swapchain cannot be resized unless all outstanding buffer references have been released. [ MISCELLANEOUS ERROR #19: ]
d3d11: IDXGISwapChain2::ResizeBuffers(...) failed (887a0001).

  1. Response avatar

    Resolution Note (fix version 2019.1):

    VR was stomping on the swap chain textures when started from 2D window mode. This is unnecessary for Desktop VR (unlike HoloLens) so don't even try to do this if we aren't running on HoloLens.

  2. Response avatar

    Resolution Note (fix version 2019.2):

    Backport fix from trunk

  3. Response avatar

    Resolution Note (fix version 2019.1):


  4. Response avatar

    Resolution Note (fix version 2018.4):


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