Stationary Lights are causing shadowing errors with Movable Objects

UE - Graphics Features - Feb 11, 2015

Stationary Lights are generating shadows with flickering black square and vanish shadows altogether on movable objects in the Preview of 4.7p6 and in the newest Release Branch of 4.7 (2439472). The ...

Starting position of physics simulated bp is different in Standalone Game

UE - Simulation - Physics - Feb 26, 2016

Starting position of physics simulated bp is different in Standalone Game User Description: Things work fine in the editor window, but when I run a standalone game then blueprints with physics bod ...

Extracting Sprites from Padded Non-Power of Two Textures are Offset

UE - Gameplay - Paper2D - Oct 12, 2015

Extracted Sprites are offset when importing a non-power of two sprite sheet, padding it to a power a two mode, and then using the extract function. You can see this offset clipping of the extracted ...

Blueprint interface function with the same name as a node gets fused

UE - Gameplay - Blueprint - Nov 29, 2017

Creating a Blueprint interface and changing its function name causes a crash when using the undo button to change the name back. ...

Regression: FAnimInstanceProxy memory leak when BeginDestroy() called on UAnimInstance before USkeletalMeshComponent

UE - Anim - Runtime - Feb 10, 2025

In UE 5.5, the fix applied by CL 36529858 in ue5-main updated USkeletalMeshComponent::ClearAnimScriptInstance() to call AnimScriptInstance::UninitializeAnimation() on the animation instance. This, i ...

Adding a Local Variable to a blueprint Construction Script will cause a crash

UE - Gameplay - Blueprint - Dec 18, 2014

Adding a Local Variable to a blueprint Construction Script will cause a crash ...

Deprecated components can still be added via the Add Component button

UE - Gameplay - Blueprint Editor - Oct 19, 2021

The UDN has a possible fix for this issue in the Component Type Registry You can use the following as a test C++ class: #pragma once #include "CoreMinimal.h" #include "Components/ActorComp ...

Adding a code class to a blueprint project causes the editor to crash

UE - Foundation - Core - Oct 5, 2017

Adding a code class to a blueprint project causes the editor to crash after attempting to hot reload. This only occurs for a fully bluprint project, code projects or BP projects that have already h ...

Socket Preview Mesh's Scale Changes While the Socket's Scale Does Not When the Mesh Editor is Reopened

Tools - Dec 22, 2017

When setting a preview mesh and a socket to a relative scale, the socket's scale is saved but the preview meshes scale changes. This occurs when the asset is saved < mesh editor closed out < mesh ed ...

Record Animation can start "between keys"

OLD - Anim - Feb 8, 2016

A user was trying to make his recorded animation loop, but having trouble getting it to loop properly and having to eyeball it. So I did some digging and experimentation. I think that one of the m ...