# 4.10 Memory leak

**URL:** <https://forums.unrealengine.com/t/4-10-memory-leak/340291>\
**Category:** Platform & Builds\
**Tags:** unreal-engine, memory, bug-report, editor, question\
**Created:** [December 2, 2015, 11:03am UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291 "2015-12-02T11:03:09Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![StrongSoul](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@StrongSoul](https://forums.unrealengine.com/u/StrongSoul)\
**Post date:** [December 2, 2015, 11:03am UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/1 "2015-12-02T11:03:09Z")

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Terrible memory leak (10mb+ per second) when open one specific blueprint editor.

I package a simple poject.

If you open Attribute blueprint, you can see the memory leak.

try it plz.

link text

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**Author:** ![anonymous\_user\_b9532c9a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_b9532c9a](https://forums.unrealengine.com/u/anonymous_user_b9532c9a)\
**Post date:** [December 2, 2015, 4:51pm UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/2 "2015-12-02T16:51:52Z")

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Hi StrongSoul,

I was able to reproduce this on my end and have entered a bug report, UE-24035, to be assessed by the development staff.

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**Author:** ![anonymous\_user\_73094a6c1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_73094a6c1](https://forums.unrealengine.com/u/anonymous_user_73094a6c1)\
**Post date:** [December 2, 2015, 8:15pm UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/3 "2015-12-02T20:15:09Z")

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If I work in unreal engine 4.10, after a few hours unreal editor is taking up all my memory, up to 12-14gb. Is this related? I don’t recall opening an attribute editor, but I am in the blueprint editor constantly.

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**Author:** ![anonymous\_user\_b9532c9a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_b9532c9a](https://forums.unrealengine.com/u/anonymous_user_b9532c9a)\
**Post date:** [December 2, 2015, 8:16pm UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/4 "2015-12-02T20:16:25Z")

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Hi ,

Are you opening an Actor Component blueprint? This specific memory leak seems localized to Actor Components, the Attribute blueprint is specific to StrongSoul’s example.

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**Author:** ![StrongSoul](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@StrongSoul](https://forums.unrealengine.com/u/StrongSoul)\
**Post date:** [December 3, 2015, 3:13am UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/5 "2015-12-03T03:13:49Z")

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Hi ,

It’s not a few hours.  
If you open the Attribute blueprint, memory can up to 10gb after a few minute, then the editor can not work.

And other actor component blueprint not reproduce this bug.

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**Author:** ![Classyham](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Classyham](https://forums.unrealengine.com/u/Classyham)\
**Post date:** [December 20, 2015, 3:29am UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/6 "2015-12-20T03:29:07Z")

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I have managed to replicate this using the ThirdPersonExample. After leaving the character blueprint open for 3 hours the Unreal Engine process was using about 29GB’s of ram.

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**Author:** ![anonymous\_user\_280dd372](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_280dd372](https://forums.unrealengine.com/u/anonymous_user_280dd372)\
**Post date:** [December 28, 2015, 8:12pm UTC](https://forums.unrealengine.com/t/4-10-memory-leak/340291/7 "2015-12-28T20:12:38Z")

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Note that this is fixed in 4.11. Tested and resolved the above bug report.