SetConstraintBindingID of ConstraintSection on Sequencer cannot be set from Blueprint

UE - Anim - Sequencer - Jan 28, 2021

The SetConstraintBindingID of the ConstraintSection on the Sequencer is the BlueprintPure function. The licensee is trying to parent and child objects on the Sequencer using sequencer scripting, and ...

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/ ...

Sprite does not have a UV1 G channel.

UE - Niagara - Jun 16, 2022

The R channel of UV1 is not a problem. ...

Emissive material lighting falloff regression in GPU Lightmass

UE - Graphics Features - Sep 12, 2023

Forum user noted that emissive lighting being built with GPU Lightmass is in fact being built, just not around the mesh, but in a larger radius and with reduced strength compared to 5.1.1. They foun ...

UHapticFeedbackEffect_SoundWave Initialize does not populate Raw Data in the HapticsBuffer

UE - Platform - XR - Jul 19, 2024

From the UDN:  >  Open HapticsFeedbackEffect.cpp and naivgate ~ line 150; note HapticBuffer has length populated but never write the actual buffer data. LikeReplySelect as Best Seems like a simple f ...

JumpForce replicated ability task not always cleaned up properly

UE - Gameplay - Gameplay Ability System - Jul 19, 2024

See [Link Removed] for original report.  UAbilityTask_ApplyRootMotionJumpForce has a slightly different flow than other Root Motion Source ability tasks. It is the only one that allows EndTask to b ...

When dragging a keyframe on top of another, it keeps both keyframes instead of overriding

UE - Anim - Sequencer - Nov 23, 2024

When dragging a keyframe on top of another, it keeps both keyframes instead of overriding ...

Adding SmartObjectZoneAnnotationComponent to a blueprint actor causes a crash when building the package

UE - AI - SmartObject - Jan 30, 2025

If placing an actor with SmartObjectZoneAnnotationComponent added to blueprint actor in a level, it will crash when the level open. As a workaround, adding SmartObjectZoneAnnotationComponent to the ...