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Unreal Engine crashing shortly after startup

After launching Unreal Engine from the Unreal Launcher the editor will come up briefly (20-30s), behave normally, then suddenly crash. Looking in the logs, I am getting the following:

[2018.07.04-17.25.28:409][820]LogD3D11RHI: Error: Result failed at D:\Build++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Viewport.cpp:303 with error 8876017C [2018.07.04-17.25.28:410][820]LogWindows: Windows GetLastError: The operation completed successfully. (0) [2018.07.04-17.25.28:895][820]LogWindows: Windows GetLastError: The operation completed successfully. (0) [2018.07.04-17.25.28:895][820]LogWindows: Error: === Critical error: === [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:895][820]LogWindows: Error: Fatal error: [File:D:\Build\++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp] [Line: 819] [2018.07.04-17.25.28:895][820]LogWindows: Error: Rendering thread exception: [2018.07.04-17.25.28:895][820]LogWindows: Error: Fatal error: [File:D:\Build\++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 233] [2018.07.04-17.25.28:895][820]LogWindows: Error: Result failed [2018.07.04-17.25.28:895][820]LogWindows: Error: at D:\Build++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Viewport.cpp:303 [2018.07.04-17.25.28:895][820]LogWindows: Error: with error 8876017C [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x0000000048C2A388 KERNELBASE.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001CE57884 UE4Editor-ApplicationCore.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001A566D9B UE4Editor-Core.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001A4A1949 UE4Editor-Core.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x00000000F988E796 UE4Editor-D3D11RHI.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x00000000F986D62A UE4Editor-D3D11RHI.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x00000000F986D58C UE4Editor-D3D11RHI.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x00000000F987AADF UE4Editor-D3D11RHI.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001C65F0B6 UE4Editor-RHI.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x00000000F9621FF8 UE4Editor-SlateRHIRenderer.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x00000000F9627C4C UE4Editor-SlateRHIRenderer.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001A37B713 UE4Editor-Core.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001A37BD3A UE4Editor-Core.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x0000000020C13CC9 UE4Editor-RenderCore.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x0000000020C14CF6 UE4Editor-RenderCore.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001A749FFC UE4Editor-Core.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000001A73ED63 UE4Editor-Core.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000004C283034 KERNEL32.DLL!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000004C761431 ntdll.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [Callstack] 0x000000004C761431 ntdll.dll!UnknownFunction [] [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:895][820]LogWindows: Error: [2018.07.04-17.25.28:909][820]LogExit: Executing StaticShutdownAfterError [2018.07.04-17.25.28:912][820]LogWindows: FPlatformMisc::RequestExit(1) [2018.07.04-17.25.28:913][820]Log file closed, 07/04/18 10:25:28

Product Version: UE 4.19
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asked Jul 06 '18 at 04:30 AM in Bug Reports

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avatar image LemonInGintonic Jul 07 '18 at 08:32 PM

Try rebuilding the engine from source. You can download it online from Epic Games's github page I think. Also, are you trying to open a certain project when it crashes? Have you tried creating a new project (an empty one) and opening it?

avatar image Jeff A ♦♦ STAFF Jul 09 '18 at 01:43 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



avatar image mhanbildiren Jul 09 '18 at 02:40 PM

My computer is new, it works clearly for 5 days, but now it crashes?!

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