# Why does my baked lighting have these issues?

**URL:** <https://forums.unrealengine.com/t/why-does-my-baked-lighting-have-these-issues/1599338>\
**Category:** Rendering\
**Tags:** unreal-engine, question\
**Created:** [January 8, 2024, 3:36pm UTC](https://forums.unrealengine.com/t/why-does-my-baked-lighting-have-these-issues/1599338 "2024-01-08T15:36:40Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![glitchered](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/glitchered/32/768299_2.png) [@glitchered](https://forums.unrealengine.com/u/glitchered)\
**Post date:** [January 8, 2024, 4:21pm UTC](https://forums.unrealengine.com/t/why-does-my-baked-lighting-have-these-issues/1599338/2 "2024-01-08T16:21:36Z")

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epic’s gpu lightmass has a bug in it, that breaks lighting on landscapes. community member backported the 5.4 fix to 5.3.2.

> [@GPU Lightmass not working on Landscape](https://forums.unrealengine.com/t/gpu-lightmass-not-working-on-landscape/1371174/16):
>
> I really need to see the logs from the crashes jn Documents\Unreal Projects\LightmapTest\_UE530\Saved\Crashes\UECC-Windows- 8ED134D84B09B1457FD38AA524808285\_0002\LightmapTest\_UE530.log If you could zip/rar all the files from Documents\Unreal Projects\LightmapTest\_UE530\Saved\Crashes\ Documents\Unreal Projects\LightmapTest\_UE530\Saved\Logs by Personal message. I dont need any projects uploaded. You can send by personal message DM on forum

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