# Missing parts of mesh when importing object / normals issue? 

**URL:** <https://forums.unrealengine.com/t/missing-parts-of-mesh-when-importing-object-normals-issue/2503870>\
**Category:** Rendering\
**Tags:** normals, unreal-engine, Rendering, question\
**Created:** [May 11, 2025, 5:58pm UTC](https://forums.unrealengine.com/t/missing-parts-of-mesh-when-importing-object-normals-issue/2503870 "2025-05-11T17:58:59Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Trep1017](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Trep1017](https://forums.unrealengine.com/u/Trep1017)\
**Post date:** [May 11, 2025, 5:58pm UTC](https://forums.unrealengine.com/t/missing-parts-of-mesh-when-importing-object-normals-issue/2503870/1 "2025-05-11T17:58:59Z")

</div>

Hello, I am new to Unreal engine. I have been modeling a wagon in blender and then used substance painter / designer to design some textures for this wagon. However, when importing low-poly object I am getting artifacts. I checked the normal orientation in blender and I was good there. I believe it has something to do with the normals because when I go into unreal engine modeling / attribs, normals, and select recompute normals it fixes the missing meshes from the object. When I select Accept button nothing happens and it does not fix the issue. Is there a way from unreal engine to fix my issue with these normals or something that has to be done with blender / substance painter?

Things I have tried so far. Disabling SRGB on the texture sample OcclusionRoughnessMetallic map. Also, I tried enabling flip green channel that hasn’t fixed it either. Any help would be appreciated as I am still learning 3d modeling and unreal engine.

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/5/1/25103ffbe10aab8ad2c0ed5914df89d794e64edd.jpeg)

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/7/4/674998f4cce754419c109c5c29d2c0cc696f2ade.jpeg)

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/d/7/7d72139e396a0f7fc18d3ab3b6ecc2b0a6533f52.png)

---

<div class="post-metadata">

**Author:** ![Trep1017](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Trep1017](https://forums.unrealengine.com/u/Trep1017)\
**Post date:** [May 11, 2025, 9:13pm UTC](https://forums.unrealengine.com/t/missing-parts-of-mesh-when-importing-object-normals-issue/2503870/2 "2025-05-11T21:13:18Z")

</div>

I think I figured it out I needed to enable SM6 within the project settings. Once I did that and restarted the file the meshes started to look as they should.

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/b/f/0bfbfc4b75514d9b8c095a2e8f53523ee4850523.png)  
 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/1/c/f1c1933c0204d85ebc746604b65a7097fc8489f7.jpeg)