# UE 5.4 Changing geometry collections scale keeps crashing the engine

**URL:** <https://forums.unrealengine.com/t/ue-5-4-changing-geometry-collections-scale-keeps-crashing-the-engine/1900700>\
**Category:** Programming & Scripting\
**Tags:** unreal-engine, crash, geometry, Blueprint\
**Created:** [June 12, 2024, 6:04pm UTC](https://forums.unrealengine.com/t/ue-5-4-changing-geometry-collections-scale-keeps-crashing-the-engine/1900700 "2024-06-12T18:04:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Zuyas](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/zuyas/32/761676_2.png) [@Zuyas](https://forums.unrealengine.com/u/Zuyas)\
**Post date:** [June 12, 2024, 6:04pm UTC](https://forums.unrealengine.com/t/ue-5-4-changing-geometry-collections-scale-keeps-crashing-the-engine/1900700/1 "2024-06-12T18:04:22Z")

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When changing the geometry collection’s world scale in a blueprint, my engine always crash since 5.4.  
In 4.3 it worked fine.

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/e/7/7e7546f8f553858b7b53fa7193bc349dfb58a15e.png)  
this gave me a nice effect of the particles fading away. Now the effect is:

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/8/4/684611a385d6289fbace37b309b57bc6ee9f6337.png)

Any ideas how to get around this crash? Is this a known bug?

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**Author:** ![Weitagon](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Weitagon](https://forums.unrealengine.com/u/Weitagon)\
**Post date:** [July 2, 2024, 3:11am UTC](https://forums.unrealengine.com/t/ue-5-4-changing-geometry-collections-scale-keeps-crashing-the-engine/1900700/2 "2024-07-02T03:11:40Z")

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I am experiencing the same crash with same code as yours. It was working in 5.3, but now it doesn’t. See if this fixes it.

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/f/6/bf6e18a9712bce697af98a1b6a7ffe85ec754962.png)

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**Author:** ![Cruddynight](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Cruddynight](https://forums.unrealengine.com/u/Cruddynight)\
**Post date:** [September 10, 2024, 2:51pm UTC](https://forums.unrealengine.com/t/ue-5-4-changing-geometry-collections-scale-keeps-crashing-the-engine/1900700/3 "2024-09-10T14:51:46Z")

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I have the same exact problem, it stopped crashing after I disabled collision and simulation but it wont shrink the mesh pieces at all. They just disappear after animation finishes (but you can’t see the said animation).

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/e/a/eea08f47652b33564a635c507bd898460f7aeb31.png)