# Lumen no longer working in UE5.5 DX11 SM5

**URL:** <https://forums.unrealengine.com/t/lumen-no-longer-working-in-ue5-5-dx11-sm5/2126402>\
**Category:** Rendering\
**Tags:** dx11, unreal-engine, Lumen\
**Created:** [November 16, 2024, 12:43am UTC](https://forums.unrealengine.com/t/lumen-no-longer-working-in-ue5-5-dx11-sm5/2126402 "2024-11-16T00:43:37Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![Uno1982](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/uno1982/32/982436_2.png) [@Uno1982](https://forums.unrealengine.com/u/Uno1982)\
**Post date:** [February 11, 2025, 5:49pm UTC](https://forums.unrealengine.com/t/lumen-no-longer-working-in-ue5-5-dx11-sm5/2126402/16 "2025-02-11T17:49:26Z")

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Also there is now a PR in dev-5.5  
[Restore DX11 SM5 SWRT Lumen by uno1982 · Pull Request #12860 · EpicGames/UnrealEngine](https://github.com/EpicGames/UnrealEngine/pull/12860)

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/b/d/dbdbe91fa37645b490677d3fd59766faab5d009d.jpeg "UE5.5.3 - Fix DX11 Lumen SWRT & Dual RHI Shader packaging.") ](https://www.youtube.com/watch?v=W9tmPdWA3Ww)

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