UE4 crashes randomly

Development Platform & Builds
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1

Whenever I do something in UE4, it just freezes for a bit, the whole engine stopped responding. And after that the crash log pop out saying:

Fatal error: [File:D:\Build++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 182] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - ‘HUNG’)

UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_D3D11RHI!TerminateOnDeviceRemoved() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:192]
UE4Editor_D3D11RHI!VerifyD3D11Result() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:231]
UE4Editor_D3D11RHI!FD3D11Viewport::PresentChecked() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:303]
UE4Editor_D3D11RHI!FD3D11Viewport::Present() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:486]
UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHIEndDrawingViewport() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:607]
UE4Editor_RHI!FRHICommandList::EndDrawingViewport() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\rhi\private\rhicommandlist.cpp:1638]
UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindow_RenderThread() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:898]
UE4Editor_SlateRHIRenderer!TGraphTask > >::ExecuteTask() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:829]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:665]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:574]
UE4Editor_RenderCore!RenderingThreadMain() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:331]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:465]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]

What should I do?

2

This occurs with my engine occasionally as well, usually due to a video card issue. You may be able to reduce the possibility of this happening by updating your video card’s drivers. I have noticed that with an Oculus hooked up and running is when it tends to happen for me, but such is the nature of ‘new’ technologies.

3

i have exactly the same issue.