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Ue4.10.1 Memory Leak Within Actor Panel.

Ue4 4.10.1 appears to have a memory leak related to the actor window that is running up 30GB's of ram in about 3-4 hours. I can send my project privately upon request if an engineer wishes to take a look into the cause.

Here is a screenshot to prove i'm not crazy (https://gyazo.com/04c744fe1cc4d9e2afbb9ca0ecebc164)

Product Version: UE 4.10
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asked Dec 20 '15 at 07:39 PM in Bug Reports

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Classyham
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avatar image Matt.Williams Dec 23 '15 at 10:18 PM

Hi Classyham,

What, specifically, do you mean by "Actor Panel" or "Actor Window"? Do you mean the World Outliner?

Are you doing anything with this window/panel that causes the leak to occur? Resizing it, detaching it, etc.

-Matt W.

avatar image Classyham Dec 26 '15 at 03:19 AM

When i say actor window i meant blueprint event graph. It also causes huge frame rate drops when a large node structure is being displayed.

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2 answers: sort voted first

The bug report in the other AH thread turned out to be a duplicate of another bug report(UE-23820) which is fixed in 4.11 (Just tested it).

The reason it occurs is that you have a ton of tabs open at once, when the tabs are too small(before 4.11), it creates a memory leak. It has to do with how it handles the tab text. So the workaround is to keep your number of tabs to a minimum, especially if you don't view the blueprints full screen.

-Matt W.

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answered Dec 28 '15 at 08:16 PM

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Here is another thread where it has been confirmed by an admin:

https://answers.unrealengine.com/questions/341761/410-memory-leak-1.html

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answered Dec 25 '15 at 12:24 PM

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Xiomax
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