Crash when deleting function referenced by instanced object.

UE - Editor - UI Systems - UMG - Aug 26, 2022

AnimDrawDebug does not work if using RootMotion from Everything

UE - Anim - Gameplay - Feb 14, 2023

Debug drawing with AnimDarwDebug~ does not work when RootMotionMode is set to "RootMotion from Everything". In addition, the same issue occurs when MultiThread of Animation is turned off. Licensee ...

Instanced properties do not update in actors placed in a level that is not currently open

UE - Gameplay - Blueprint - May 17, 2023

The user is specifically having a problem with TArray<TObjectPtr<>> however I have also reproduced this error using a single TObjectPtr<>, raw uobject pointers & all three previous methods within a ...

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 ...

UObject Macro Libraries cannot use functions that require a WorldContext

UE - Gameplay - Blueprint Editor - Jan 11, 2024

If you make a Blueprint Macro Library that derives from UObject you are then unable to use any functions that require a WorldContext, like Delay. This is because the WorldContext cannot be assumed l ...

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

ASan on iOS is broken

UE - Platform - Apple - Mar 1, 2024

Address Sanitizer (asan) is currently not working on iOS. This could be a helpful feature to get working again. ...