UE 5.8 Release - Instant Vulkan Crash (VK_ERROR_DEVICE_LOST) on Linux with RTX 3090 Ti / NVIDIA Driver

General Issues and Bug Reporting (Unreal Engine)
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Tested the 5.8.1 with a nvidia 3070 on ubuntu 24.04 with nvidia-open-580. UnrealEditor crashed until running it with -norhithread and adding

r.Vulkan.EnablePipelineLRUCache=1
r.Vulkan.WaitForIdleOnSubmit=1

r.Vulkan.AllowAsyncCompute=0
r.Vulkan.EnableDefrag=0

the editor feels kinda slow and crashed 2 times before running the topdown example project. Terminal get spamed with a massive amount of swapchain errors.

Update: this pull request worked for me: https://github.com/EpicGames/UnrealEngine/pull/14943 no extra settings needed.

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I was notified from my report that this is potentially fixed… .?

Unverified.

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Update on my Mesa bug report on AMD.

It was fixed and merged - Making sure you're not a bot!

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UE-385759’s status has changed to ‘Ready for QA’. A member of the QA department is investigating the issue.