Game crashes at startup after modding

Development Platform & Builds
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1

Hello, I’m modding a game doing simple rigged model swaps. I packaged the two model swaps in a single .pak mod file, the first one works great, and the second works only on already loaded models it seems. When I create a new “world”, it crashes on load with the following crash log:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address
d3d11
gamworld_Win64_Shipping!FD3D11DynamicRHI::SetResourcesFromTables<FD3D11PixelShader>() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Commands.cpp:1444]
gamworld_Win64_Shipping!FD3D11DynamicRHI::CommitGraphicsResourceTables() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Commands.cpp:1541]
gamworld_Win64_Shipping!FD3D11DynamicRHI::RHIDrawIndexedPrimitive() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Commands.cpp:1637]
gamworld_Win64_Shipping!FRHICommandDrawIndexedPrimitive::Execute() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\RHI\Public\RHICommandListCommandExecutes.inl:236]
gamworld_Win64_Shipping!FRHICommandListBase::Execute() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:438]
gamworld_Win64_Shipping!<lambda_75ddbfb11cc8a13b3164d115db08cf61>::operator()() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:646]
gamworld_Win64_Shipping!FRHICommandListBase::Execute() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:438]
gamworld_Win64_Shipping!<lambda_2ac0f741d85996a99df8c803ca38ce50>::operator()() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:744]
gamworld_Win64_Shipping!TGraphTask<TFunctionGraphTaskImpl<void __cdecl(void),0> >::ExecuteTask() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:1349]
gamworld_Win64_Shipping!FNamedTaskThread::ProcessTasksUntilQuit() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:648]
gamworld_Win64_Shipping!FRHIThread::Run() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp:333]
gamworld_Win64_Shipping!FRunnableThreadWin::Run() [C:\works\gam-UE-EngineSource\Engine\Source\Runtime\Core\Private\Windows\WindowsRunnableThread.cpp:149]

I did update my NVIDIA drivers and tried resetting global NVIDIA settings to default.
(I have an NVIDIA GeForce RTX 3060)

Thank you!

2

Greetings @Kurama0

Welcome to the the Unreal Engine Community Forum! The steps you took were definitely a good start. Have you tried changing it to DirectX 12 and running to see if it still crashes? (Also is this happening in one specific UE version or multiple? Thanks!)

3

Hello @FrostyJas,
Thank you. This only happens in this specific project in UE 5.1.
How would I go about forcing it to use DirectX 12? I’m not too sure.

4

Hi @Kurama0

You’d need to swap the RHI. Here’s a great guide on exactly how to do that with UE5. Render Hardware Interface (RHI) | Community tutorial. I hope that helps!