Software Crash, GPU spike to 100% of use after launching a session or pushing last modification

General Issues and Bug Reporting
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1

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Summary

Crash due to a GPU high spike reached 100% of use with GPU 0 Nvidia Geforce RTX 4070 and GPU 1 AMD Radeon9TM) 610M at the same time.

Steps to Reproduce

  • Open the last version of UEFN
  • Open a project
  • Launch session

Expected Result

No software crash and no GPU spike to 100%

Observed Result

Software crash and GPU spike to 100%

Platform(s)

Windows 11, version 23H2

Additional Notes

reproducibility 3/5

2

Hi the minimum specification for graphic cards with Unreal Engine 5.3 (UEFN ) is

  • Video cards must be NVIDIA RTX-2000 series and higher, or AMD RX-6000 series and higher

listed in Hardware and Software Specifications for Unreal Engine | Unreal Engine 5.0 Documentation

3

Hi, it’s specifically for Lumen. And did not resolve the problem, the engine runs well but crashes 3 times out of 5. If is a really low configuration for my driver, it should not allow me to run the software or to work as well as it can. It’s too random without a proper error, and I’m not sure it’s because of my GPU, it did that too to other UE5 projects without lumen enabled. I’m not sure it’s the right solution…

4

I had the same problem and solved it.

  1. The crashing issue after GPU memory reaches 100% occurs in Windows 11 version 23h2.
  2. Format your system and install Windows 10 version 22h2, then stop Windows updates.
  3. Afterwards, there were no more GPU crash symptoms.