Out-of-bounds read caused by improper return size from FSocketSteam::RecvFrom in Unreal Engine

UE - Online - Jun 7, 2021

Overview: Function at fault: FSocketSteam::RecvFrom (https://github.com/EpicGames/UnrealEngine/blob/c3caf7b6bf12ae4c8e09b606f10a09776b4d1f38/Engine/Plugins/Online/OnlineSubsystemSteam/Source/Private/ ...

CoreRedirects cannot be properly used to rename a BlueprintImplementableEvent that has a return value

UE - Gameplay - Blueprint - Dec 7, 2017

Attempting to use CoreRedirects to rename a BlueprintImplementableEvent that has a return value results in the function not being renamed in the Blueprint subclasses and its Return Value nodes causi ...

The color picker stops working after changing the color once on a color property on a component

UE - Editor - UI Systems - Slate - Nov 13, 2019

Changing the color on a component property via the color picker will cause the picker to stop working until it's closed and reopened. This occurs because a property change event is sent out, and the ...

Memory Leak in GetAccessAddress (PropertyAccess.cpp)

UE - Anim - Runtime - Jan 15, 2025

[Link Removed] you own this I believe, see the UDN for details about the leak. The UDN as screenshots of what functions they made to create the leak.  I was unable to actually get this code path ...

Adding a code class derived from SceneCaptureComponent2D to a project will prevent that project from building successfully in Visual Studio.

UE - Graphics Features - Dec 9, 2014

Adding a code class that derives from SceneCaptureComponent2D will cause the build to fail in Visual Studio. Build Errors: 1>MySceneCaptureComponent2D.cpp.obj : error LNK2001: unresolved external ...

Opening the color picker causes values to change

Tools - Sep 18, 2017

Opening the Color Picker for some color variables causes them to change each time the color picker is opened. Tested with: Light Color and the Albedo variable on ExponentialHeightFog Does NOT occur ...

GameFrameworkComponentManager crashes when modifying init state callbacks during state change

UE - Gameplay - Feb 28, 2024

The GameFrameworkComponentManager has a system for registering callbacks to execute in response to event changes. This ends up calling UGameFrameworkComponentManager::CallFeatureStateDelegates which ...

Assertion failed: (Index >= 0) & (Index < ArrayNum) when importing large Alembic file

UE - Editor - Content Pipeline - Datasmith - Importer - May 3, 2022

Regression testing done on //UE4/Release-4.27.2 CL-18427296 and this issue did occur. [Link Removed] [Link Removed] Below is snips of customers description and proposed workaround:Importing alembi ...

Arguments out of order in call to FMemory::Memset() from UTexture2DFactoryNew::FactoryCreateNew()

Tools - Mar 22, 2018

The call to FMemory::Memset() in UTexture2DFactoryNew::FactoryCreateNew() appears to reverse the expected order of the second and third arguments. Most other calls to FMemory::Memset() appear to sen ...

Renaming an interface appears to cause pins to disconnect

UE - Gameplay - Blueprint - Dec 15, 2016

Renaming an interface appears to cause pins to disconnect from the functions of that interface in the blueprints that use that interface. Any wires for the updated parts of the interface are disconn ...