# Lumen broken ingame / Hardware Ray-Tracing option is not working

**URL:** <https://forums.unrealengine.com/t/lumen-broken-ingame-hardware-ray-tracing-option-is-not-working/2390417>\
**Category:** Issues and Bug Reporting\
**Tags:** Ray-Tracing, fortnite-creative, unreal-editor-for-fortnite, Lumen, Rendering, fortnite\
**Created:** [March 14, 2025, 11:17pm UTC](https://forums.unrealengine.com/t/lumen-broken-ingame-hardware-ray-tracing-option-is-not-working/2390417 "2025-03-14T23:17:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TRIVIAL\_G](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/trivial_g/32/1100782_2.png) [@TRIVIAL\_G](https://forums.unrealengine.com/u/TRIVIAL_G)\
**Post date:** [March 14, 2025, 11:17pm UTC](https://forums.unrealengine.com/t/lumen-broken-ingame-hardware-ray-tracing-option-is-not-working/2390417/1 "2025-03-14T23:17:13Z")

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### Summary

the Hardware Ray-Tracing option has no longer any effect on PC. Even if you toggle the option on or off (the getaway update). Lumen global illumination settings are changed from the editor scalability to the PC game setting scalability (Fortnite official build).

### Please select what you are reporting on:

Creative

### What Type of Bug are you experiencing?

Assets

### Steps to Reproduce

Enable Nanite, Lumen, and turn Lumen to Epic. After that, enabling Hardware Ray-Tracing won’t take effect at all.

### Expected Result

Hardware Ray-Tracing should add occlusions between Nanite assets

### Observed Result

Hardware Ray-Tracing won’t take effect at all.

### Platform(s)

PC

### Upload an image

 ![Annotation 2025-03-14 235919.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/4/8/64889136a4e0da50922eed77475f0eb6ea2e7471.png)

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**Author:** ![niyuuesuto](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/niyuuesuto/32/1010943_2.png) [@niyuuesuto](https://forums.unrealengine.com/u/niyuuesuto)\
**Post date:** [March 20, 2025, 1:26pm UTC](https://forums.unrealengine.com/t/lumen-broken-ingame-hardware-ray-tracing-option-is-not-working/2390417/2 "2025-03-20T13:26:57Z")

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I have the same problem. Massive shame as I just was finally able to diagnose that the GPU drivers for the Gigabyte 4070 Super cards are actually broken on all UE5 games, and especially on Fortnite.

Software RT/Hardware RT:  
_[“An error occurred: Sorry, new users can only put one embedded media item in a post.”]_  
_[“An error occurred: Sorry, new users can only put one embedded media item in a post.”]_

Yes. These are different screenshots, with different settings. Hardware RT is just completely broken. 😕

This did not work: [https://www.epicgames.com/help/en-US/c-Category\_Fortnite/c-Fortnite\_TechnicalSupport/what-can-i-do-if-my-pc-crashes-with-hardware-ray-tracing-a000092489](https://www.epicgames.com/help/en-US/c-Category_Fortnite/c-Fortnite_TechnicalSupport/what-can-i-do-if-my-pc-crashes-with-hardware-ray-tracing-a000092489)

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**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\
**Post date:** [September 10, 2025, 11:17pm UTC](https://forums.unrealengine.com/t/lumen-broken-ingame-hardware-ray-tracing-option-is-not-working/2390417/3 "2025-09-10T23:17:17Z")

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