5.4.2 Crashing after windows reinstallation

[InTheStars]

After a clean windows reinstallation UE 5.4.2 is having this error:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000008

nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
D3D12Core
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
UnrealEditor_D3D12RHI
UnrealEditor_D3D12RHI
UnrealEditor_D3D12RHI
UnrealEditor_RHI
UnrealEditor_RHI
UnrealEditor_RHI
UnrealEditor_RHI
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_RenderCore
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

Anyone have any ideas?

[SupportiveEntity]

Hey there @InTheStars! Welcome back to the community! This error is related to the graphical dll nvwgf2umx. I have a compiled list of the most common solutions and workarounds in this thread here:

Any version crash!!!

Hey there @DSchultz2000! Welcome to the community! So the nvwgf2umx portion of this error refers to an Nvidia graphical dll. So more than likely it’s related to GPU settings or drivers. Most time’s I’ve run into this, the fix comes from a few possible angles. Listed in order of most common to least common known fixes: Defaulting your Nvidia 3D settings Changing to Studio drivers instead of Game Ready drivers Downgrading driver version (if a recent update broke compatibility) Lowering your pro…

Some may be redundant on a fresh windows installation. Give them a try and let me know how it goes!

[InTheStars]

Thanks! It looks like after disabling afterburner everything seems to be working. Though 5.4 seems to be far more performance heavy is this intentional?

[SupportiveEntity]

I’m glad that worked out! This is a thread of users going over some possible fixes and workarounds for poor performance primarily in 5.4:

UNREAL ENGINE 5.4 EXTREMELY BAD PERFORMANCE

Hi everyone, I have upgraded my UE 5.3.1 to 5.4. And performance is extremely bad. In Version 5.3, I was getting an average of 120FPS at Normal settings and 60-70FPS at High and EPIC settings. In Version 5.4, I get 15-20FPS even at low settings. And I cannot downgrade my project to a lower version. Please help me. I have been working on this project for 6 months. Thanks everyone for help. My PC: Processor Ryzen 5 5600X Graphics Card AMD Radeon RX 6700XT RAM 16GB

[InTheStars]

Thanks again! The fix for me seems to be disabling the telemetry plugin for some reason. Has this bug already been reported?

[SupportiveEntity]

I believe the bug has been reported a number of times, however more information on the issue itself can’t hurt. Here’s the link!:

https://www.unrealengine.com/en-US/support/report-a-bug

[kenyanslo]

Thanks so much @InTheStars . You saved my job. Imagine forcing the company to get you a new work station and delaying projects because of a crash you cant explain to management. This worked like a charm. I have been at this for weeks. Below is my specs, apparently different users experience different solutions according to CPU-GPU combo. In my case all the workload was being sent to iGPU. Disabled it in bios and now am good.