# My meshes get black on Building Light on UE 5.2

**URL:** <https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123>\
**Category:** Rendering\
**Tags:** building-lighting, build, unreal-engine, Rendering, Lighting, question\
**Created:** [June 15, 2023, 2:21pm UTC](https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123 "2023-06-15T14:21:14Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Mantovictor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Mantovictor](https://forums.unrealengine.com/u/Mantovictor)\
**Post date:** [June 15, 2023, 2:21pm UTC](https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123/1 "2023-06-15T14:21:14Z")

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Hey all.  
I’m having issues on baking light on UE 5.2  
I have set everything from Lumen to None, also tried Standalone Ray Traced, both gives me same results. My meshes all get black, I set the light map to correct one, still no results. Only standard objects I add that reacts to the bake, all the geometry I bring from datasmith dont. ☹

Any help?

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**Author:** ![bistrick](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@bistrick](https://forums.unrealengine.com/u/bistrick)\
**Post date:** [June 15, 2023, 4:24pm UTC](https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123/2 "2023-06-15T16:24:09Z")

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Hy, I’am just guessing, maybe You should turn on virtual textures options in project settings.

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/1/2/b12cc15d0601f65948fe66d478c9cb9a47302b88.png)

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**Author:** ![bistrick](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@bistrick](https://forums.unrealengine.com/u/bistrick)\
**Post date:** [June 15, 2023, 9:48pm UTC](https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123/3 "2023-06-15T21:48:53Z")

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I just run into it, it could be help:

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/1/2/51253608ac0c0a57ca028e8d96d3c5667c4f0e56.jpeg)

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**Author:** ![Mantovictor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Mantovictor](https://forums.unrealengine.com/u/Mantovictor)\
**Post date:** [June 16, 2023, 1:35pm UTC](https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123/4 "2023-06-16T13:35:10Z")

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Well, thank you for the replies!  
I actually found out what was the problem:  
LogExternalSource: Warning: The imported Datasmith scene was created with a version of a Datasmith exporter (4.24E0) that doesn’t match your Unreal Engine version (5.2.0). For best results, install Unreal Engine version 5.2.0 or later.

My build was working only with FBX imports. I use Blender, so Blender datasmith export only works for UE4 regarding Light Bake, for Lumen it seems to work perfectly.

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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:** [July 16, 2023, 1:35pm UTC](https://forums.unrealengine.com/t/my-meshes-get-black-on-building-light-on-ue-5-2/1200123/5 "2023-07-16T13:35:47Z")

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