When I open UE it launches the splash screen and takes me to the launch page. I can start a project but after the project opens it crashes. I get maybe 30 or 40 seconds in the project. I’ve updated drivers, I’ve reset Nvidia control panel settings for UE, and i have verified the Engine. Can anyone help?
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000028
Select this
Then make sure you install “Editor symbols for debugging”
And after that, run the editor and post full logs here. But probably, I would guess your graphic card is giving you the issues. Make sure you have the latest drivers.
Greetings @BloodyNed
Welcome to the Unreal Engine Community Forum! I’d be happy to help with the error. As Bojan mentioned, if you could post the full error log that would be extremely beneficial as we will be able to see more of what is causing the exception. Thanks!
This is the full error report that i get when it crashes on me. I have updated Nvidia drivers, intel drivers, and Bios. I have completely uninstalled and reinstalled UE5. Everything I have found has pointed at a directx12 issue but I’m not sure how to fix it. I have debug installed already, and I have Visual Studio if you would like me to share the dump code as well. I am new to C++ so you’ll have to bear with me.
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000028
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
D3D12Core
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
UnrealEditor_D3D12RHI!FD3D12Viewport::PresentChecked() [D:\build++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:638]
UnrealEditor_D3D12RHI!FD3D12Viewport::Present() [D:\build++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:709]
UnrealEditor_D3D12RHI!FD3D12CommandContextBase::RHIEndDrawingViewport() [D:\build++UE5\Sync\Engine\Source\Runtime\D3D12RHI\Private\D3D12Viewport.cpp:916]
UnrealEditor_RHI!FRHICommand<FRHICommandEndDrawingViewport,FRHICommandEndDrawingViewportString2069>::ExecuteAndDestruct() [D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Public\RHICommandList.h:1245]
UnrealEditor_RHI!FRHICommandListBase::Execute() [D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:461]
UnrealEditor_RHI!FRHICommandListImmediate::ExecuteAndReset'::35’::<lambda_4>::operator()() [D:\build++UE5\Sync\Engine\Source\Runtime\RHI\Private\RHICommandList.cpp:772]
UnrealEditor_RHI!TGraphTask<TFunctionGraphTaskImpl<void __cdecl(void),0> >::ExecuteTask() [D:\build++UE5\Sync\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:1265]
UnrealEditor_Core!FNamedTaskThread::ProcessTasksNamedThread() [D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:758]
UnrealEditor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:649]
UnrealEditor_RenderCore!FRHIThread::Run() [D:\build++UE5\Sync\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp:328]
UnrealEditor_Core!FRunnableThreadWin::Run() [D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Windows\WindowsRunnableThread.cpp:149]
Have you tried running it in DirectX 11? (I’ve saw this error specifically with DirectX 12 a number of times)
I have not! How do I roll back to DirectX 11 when I have 12 already?
How much system RAM do you have?
How much video RAM do you have?
How much free disk space do you have?
What is your graphics card, and the version of your graphics driver?
32gb system ram
storage is 1tb.
32 GB RAM and 8 GB VRAM should be okay to start the editor, unless your project is really big. (A big project like the cinematic demo projects, or the city demo project, will need much more.)
1 TB storage is fine, assuming you actually have free space left 
When you say “start a project” I expect you mean you create a brand new project, which clearly won’t be too big.
nvwgf2umx is part of the NVIDIA laptop device drivers. My guess is that something’s gotten corrupted in your driver install. If you’re using special tweaking/overclocking tools, I’d recommend uninstalling those. Then, do a clean download / re-install of the NVIDIA drivers, ideally the Studio Drivers, not Game Ready drivers, and hope for the best!
ok. i did get rid of armory crate because it sucks and has way to many downloads. so I’m using GHlper at the moment. but i do have a fresh install of studio drivers. I’m running a core I9 13980HX with a 3070. Cpu is undervolted and overclocked a little bit and GPU is offset a tiny bit. I’m not sure if maybe the GHelper is messing it up? but it just started last week and I’ve been running it like this for about a month and its been fine. Any Ideas?
Sorry, no experience with the Asus tool suite. I end up removing all shovelware and running everything stock for my workstation computer, to reduce any kind of interaction …
Do you have any overlay software? Chat status, OBS, streamkit, etc? Might be worth looking into that, too.
Or, perhaps it’s possible to enable Vulkan or D3D11 instead of D3D12 renderer, as a last resort thing to try. There are some threads about how to do that. (Might need that you start the editor from the command line though.)
hi @BloodyNed ,
Your problem is the DirectX 12 drivers. If you are using Windows 11 they will fail as they are DirectX12 Ultimate driver and they are looser coded than Windows 10.
Windows 11 is not officially supported for UE5 yet.
Anyway the way to change DX11 drivers which work in Windows 10/11 is in my previous post
#UE5 CRASH #UE5 Unreal Engine 5 Crash in Dx12 drivers use DX11 drivers
This is a good post! Thank you Jimbo! @BloodyNed
