Windows Crash while using UEFN

General Issues and Bug Reporting
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Summary

I have been experiencing this crash for a while now. I’ve checked many things but it only happens when UEFN and Fortnite are open. Typical crash where whole windows crashes and going to automatic fixing blue screen. I’m not super technical but reminds me off what a memory crash would be.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

Have both UEFN and Fortnite open, randomly occurs after a while.

Expected Result

Run normally with no issues.

Observed Result

Windows crashes and takes you to start-up repair blue screen.

Platform(s)

PC UEFN

Island Code

Not Island Specific

Additional Notes

I’ve followed multiple forums online and reinstall Fortnite and UEFN which didn’t fix the issue. Reinstall windows and didn’t fix which lead me to hardware issue but when running both applications, there aren’t about throttling from CPU, RAM, etc. Only happens when using UEFN. Both applications are on lowest performance settings.

CPU: AMD Ryzen 7 6800H
RAM: 32GB DDR5 (16GB 4800MHz, unsure other 16GB)
GPU: NVIDIA RTX 3070
Model: ASUS TUF Gaming A15 (2022) FA507RC

Feel free to ask any questions.

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Have you tried working with support? They have a lot of information to help with hardware issues. At the bottom of the page here, click “Contact Us”

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hi @Lew15_720 ,

The UEFN needs at least 64GB of virtual memory. (64000) 128GB (128000)

The maximum is 512GB, but you only need this if using 8K textures.

How to manually add 64GB virtual memory

This pagefile MUST be on a fast SDRAM, possibly a spare SD Drive.

The thing that has caused crashes is using DirectX 12.

In projects, start UEFN -DX11 on the command line or select DirectX 11 in the project settings.

Run DXDIAG from the Windows Search box and select Display.

A long time ago, this list of possible problems for Unreal Engine 5 was created, on which UEFN is based.

Any version crash!!! in UE5

Most of the time, the bug check is caused by a graphics driver that needs updating, as Epic Support reported.

RESOLVED: Known issues with NVIDIA 576.02 drivers on RTX 50-series GPUs | Epic Developer Community

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