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Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0020 - 'INTERNAL_ERROR')

UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349] UE4Editor_D3D11RHI!TerminateOnDeviceRemoved() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:192] UE4Editor_D3D11RHI!VerifyD3D11Result() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11util.cpp:231] UE4Editor_D3D11RHI!FD3D11Viewport::PresentChecked() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:290] UE4Editor_D3D11RHI!FD3D11Viewport::Present() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:473] UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHIEndDrawingViewport() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\windows\d3d11rhi\private\d3d11viewport.cpp:592] UE4Editor_RHI!FRHICommandList::EndDrawingViewport() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\rhi\private\rhicommandlist.cpp:1361] UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindow_RenderThread() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\slaterhirenderer\private\slaterhirenderer.cpp:891] UE4Editor_SlateRHIRenderer!TGraphTask > >::ExecuteTask() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:883] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:954] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:701] UE4Editor_RenderCore!RenderingThreadMain() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:327] UE4Editor_RenderCore!FRenderingThread::Run() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:461] UE4Editor_Core!FRunnableThreadWin::Run() [d:\build++ue4+release-4.16+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]

Product Version: UE 4.16
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asked Jul 21 '17 at 08:20 AM in Using UE4

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HeilStone
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Am having the same problem but seems no body cares.

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answered Aug 03 '17 at 08:02 AM

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hamood12
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