# The same obscure thing keeps crashing lighting builds

**URL:** <https://forums.unrealengine.com/t/the-same-obscure-thing-keeps-crashing-lighting-builds/382997>\
**Category:** Rendering\
**Tags:** unreal-engine\
**Created:** [January 26, 2017, 7:05am UTC](https://forums.unrealengine.com/t/the-same-obscure-thing-keeps-crashing-lighting-builds/382997 "2017-01-26T07:05:45Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![anonymous\_user\_6e7b421a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_6e7b421a](https://forums.unrealengine.com/u/anonymous_user_6e7b421a)\
**Post date:** [February 15, 2017, 5:14pm UTC](https://forums.unrealengine.com/t/the-same-obscure-thing-keeps-crashing-lighting-builds/382997/6 "2017-02-15T17:14:25Z")

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Hey jinngonqui,

Have you been able to reproduce this is a new blank project, or are you testing the same project? This does not mean a new level or new project with the content migrated over. I mean a completely new blank blueprint or C++ project.

Just in case there are things you haven’t tried yet, take a look at the guide below.

**Swarm Agent Troubleshooting Guide**

> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)**
>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from...

Can you provide me with your ‘dxdiag’ so I can take a look at your machines specs?

Make sure your firewall is disabled for Swarm Agent as this can prevent your lighting from building as well.

Thanks,

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