An Unreal process has crashed: UE4- MyProject

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Fatal error: [File:D:\Build++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 182] Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0020 - ‘INTERNAL_ERROR’)

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It’s pretty common. Few things to try:

  • Update your graphic card drivers (you may want to do a clean uninstall with DDU first)

  • Turn off CPU/GPU overclocking

  • Turn off Real Time thumbnails. In the Content Browser, select “View Options” at the bottom right and turn off “Real-Time Thumbnails”

  • Check that you don’t have conflicts with other application tweaking/boosting DirectX. NVidia’s live game recording should also be turned off (NVidia Share aka Shadowplay)

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the ue4-citadel game has crashed and will close fatal error: [file:E:/development\unrealengine4.21\engine\source\runtime\windows\d3d11rh\private\d3d11util.cpp] [line:200] unreal engine is exiting due to d3d device being lost. (error: 0x887a0020- ‘internal_error’)