Collapse UE4 runtime error

Development Platform & Builds
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1

Here are some big trouble.All versions of the UE4 run on my computer will be an error.
Sometimes the mouse moving too fast will make UE4collapse，or when I want to load the project and for other operation
My computer is configured to
：CPU:I7-9750H；GPU：NVIDIA GTX1650 4G;Memory：16G；SSD：256G；

Breakdown is as follows

Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/RenderCore/Private/RenderingThread.cpp] [Line: 836] 
Rendering thread exception:
Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Windows/D3D11RHI/Private/D3D11Util.cpp] [Line: 198] 
Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG')


Unhandled Exception: 0x00008000

0x00007ff94a75a839 KERNELBASE.dll!UnknownFunction []
0x00007ff8e8f7b637 UE4Editor-Core.dll!UnknownFunction []
0x00007ff8e8f7c74d UE4Editor-Core.dll!UnknownFunction []
0x00007ff8e8d71afa UE4Editor-Core.dll!UnknownFunction []
0x00007ff8e8cc67c3 UE4Editor-Core.dll!UnknownFunction []
0x00007ff8e8cc66a8 UE4Editor-Core.dll!UnknownFunction []
0x00007ff8d7b0ce56 UE4Editor-D3D11RHI.dll!UnknownFunction []
0x00007ff8d7b114b0 UE4Editor-D3D11RHI.dll!UnknownFunction []
0x00007ff8d7ae7fd7 UE4Editor-D3D11RHI.dll!UnknownFunction []
0x00007ff8d7afd1cd UE4Editor-D3D11RHI.dll!UnknownFunction []
0x00007ff8ed4a77b0 UE4Editor-RHI.dll!UnknownFunction []
0x00007ff8ed4a72aa UE4Editor-RHI.dll!UnknownFunction []
0x00007ff8ed4a8373 UE4Editor-RHI.dll!UnknownFunction []
0x00007ff8ed49e7ca UE4Editor-RHI.dll!UnknownFunction []
0x00007ff8d78a90d6 UE4Editor-SlateRHIRenderer.dll!UnknownFunction []
0x00007ff8d78b07f2 UE4Editor-SlateRHIRenderer.dll!UnknownFunction []
0x00007ff8e8b44e4a UE4Editor-Core.dll!UnknownFunction []
0x00007ff8e8b451f3 UE4Editor-Core.dll!UnknownFunction []
0x00007ff8ed8c0021 UE4Editor-RenderCore.dll!UnknownFunction []
0x00007ff8ed8c85b4 UE4Editor-RenderCore.dll!UnknownFunction []
0x00007ff8e8f99a8f UE4Editor-Core.dll!UnknownFunction []
0x00007ff8e8f8ffe1 UE4Editor-Core.dll!UnknownFunction []
0x00007ff94cef7bd4 KERNEL32.DLL!UnknownFunction []
0x00007ff94d30ced1 ntdll.dll!UnknownFunction []




Crash in runnable thread RenderThread 38
2

It’s a very know issue for Intel+NVidia laptops, UE4 is not tolerant fro dynamic GPU switching (Thats why you get “device being lost” as device UE4 is using is disconnected by the driver or OS). You need to make sure to set up your computer to always use NVidia GPU while you using UE4, i not sure exacly how my best guess is either NVidia settings or power managment settings. Keeping laptop connected to AC can prevent switching too i think, at least reduce it