# BUG - quality of the sun (lens flare, bloom) dissapear in game simulate

**URL:** <https://forums.unrealengine.com/t/bug-quality-of-the-sun-lens-flare-bloom-dissapear-in-game-simulate/373170>\
**Category:** Rendering\
**Tags:** lens-flares, bug, sun, unreal-engine, bug-report, question\
**Created:** [October 12, 2016, 9:04pm UTC](https://forums.unrealengine.com/t/bug-quality-of-the-sun-lens-flare-bloom-dissapear-in-game-simulate/373170 "2016-10-12T21:04:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![6r0m](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/6r0m/32/1194563_2.png) [@6r0m](https://forums.unrealengine.com/u/6r0m)\
**Post date:** [October 12, 2016, 9:04pm UTC](https://forums.unrealengine.com/t/bug-quality-of-the-sun-lens-flare-bloom-dissapear-in-game-simulate/373170/1 "2016-10-12T21:04:00Z")

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I have a scene with a strange bug - when I press simulate - sun appear just a white cicle without effects, and after stop it’s still the same. But after project reboot - in editor all ok before press simulate - again and again.

I migrate this scene into blank project and create new level - EMPTY . I copy sun, skylight from this level to old scene (which I migrate), and on the old scene I delete anything.

**please, see it:**  
[https://drive.google.com/open?id=0B8AB9z2m-RC1VldCLTI4NE1fLVE](https://drive.google.com/open?id=0B8AB9z2m-RC1VldCLTI4NE1fLVE)

**On the EMPTY level all is ok - in Editor, in Simulate mode - sun is good.**  
**But if change map to ApartmentCUT (migrate map) and press simulate - sun ugly again.**  
and if change level after it to EMPTY - sun ugly there too.

If restart project - all ok before press simulate on migrate level.

IF it’s not a BUG, I very very appreciate explanation how this magic work.

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**Author:** ![anonymous\_user\_0c62419a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_0c62419a](https://forums.unrealengine.com/u/anonymous_user_0c62419a)\
**Post date:** [October 13, 2016, 6:21pm UTC](https://forums.unrealengine.com/t/bug-quality-of-the-sun-lens-flare-bloom-dissapear-in-game-simulate/373170/2 "2016-10-13T18:21:11Z")

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Hi 6r0m,

In your level Blueprint you have a function called Scalability Settings. In this function you are setting your bloom quality to 0. This is removing your lens flare and bloom. Here is a screenshot of the node that is causing the issue. Either remove that from the function or set your bloom quality to a value above 0.

![110747-node.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/8/9/b897937e9688a02cfece7cd74138bc2b10b6505e.jpeg)

Hope that helps,

Ed