Attached Gameplay Cues with decals that override SetFadeOut will destroy their target actor on fade out

UE - Gameplay - Gameplay Ability System - Jun 27, 2023

Burst GCs will destroy the target actor if you attach them to the target (FGameplayCueNotify_PlacementInfo::AttachPolicy) and override the decal fade out (FGameplayCueNotify_DecalInfo::bOverrideFade ...

The UI layer system in Lyra leaks widgets when changing level

UE - Editor - UI Systems - UMG - Jan 12, 2024

Derived struct data is not copied to Base struct

UE - Gameplay - Blueprint - Feb 19, 2024

The actor Blueprint is intentionally causing an object slice to occur. In other words, we're copying a derived type to a base type, so the expectation is that only the inherited base properties are ...

UDN - Crash reverting SkeletalMesh unsaved changes

UE - Editor - Content Pipeline - Asset Build - Feb 19, 2024

Option "Update Animation in Editor" is reset for child skeletal meshes

UE - Anim - Runtime - May 24, 2024

When the boolean is set on a child skeletal mesh, looks like it gets reset   Specifically , at UActorComponent::ConsolidatedPostEditChange forces a reconstruction of the Blueprint, making the trans ...

In AnimNode_RigidBody.cpp, PhysicsSimulation->CreateActor() is being passed World Space transforms, when it should be getting Local Simulation space transforms

UE - Simulation - Physics - Jun 24, 2025

In AnimNode_RigidBody.cpp, PhysicsSimulation->CreateActor() is being passed World Space transforms, when it should be getting Local Simulation space transforms. The licensee has reported that FAnimN ...

SetGamePaused on EventDestroyed crashes the editor on compile

UE - Gameplay - Blueprint - Apr 1, 2015

SetGamePaused on EventDestroyed crashes the editor on compile. Reproduced in 4.7.3 binary and Main (//depot/UE4/Promotable-CL-2496752) Crash Report: [Link Removed] Call Stack: UE4Editor_Engine! U ...

Alembic Importing with Incorrect UV's

UE - Gameplay - Sep 20, 2016

When importing an Alembic file into the engine, the UV's appear rotated and missing textures for certain faces. This can cause stretching within the UVs which is what is being reported in the post p ...

-binnedmalloc is broken on Linux

UE - Platform - Linux - Oct 31, 2016

In 4.13 launching a linux game with -binnedmalloc will use the binned allocator. In 4.14 the command line was accidentally changed to -binnedmalloc1 while making other changes. It is still -binnedm ...