Material Layers "swap" location instead of shift downwards.

UE - Rendering Architecture - Materials - Oct 17, 2023

Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...

External Actors can hold stale references to Blueprint classes as edited instance properties

UE - World Creation - Worldbuilding Tools - Nov 14, 2024

When a component is removed from a class that exists as an instance with external actors enabled, a deleted BP component on an actor will remain referenced by the instance. Disabling External Actor ...

The "Make Static Mesh" feature for skeletal meshes does not account for disabled mesh sections.

UE - Anim - Rigging - Skeletal Editor - Dec 11, 2024

The licensee was not able to make static meshes with the correctly disabled sections from a skeletal mesh in the current implementation of the "Make Static Mesh" button in the editor. They have prov ...

Nanite mesh not culled when owner is editor only actor in gameview

UE - Graphics Features - Nanite - Mar 29, 2024

Nanite mesh is not culled because "DrawInGame" value in the primitive uniform buffer is always 1. Can be fixed with below modification:// in FPrimitiveSceneProxy::FPrimitiveSceneProxy DrawInGa ...

Assertion thrown while deleting a Curve from a Control Rig asset - DetailsViewWrapperObject.cpp: 231

UE - Anim - Rigging - Control Rig - Apr 1, 2022

Assertion thrown while deleting a Curve from a Control Rig asset.  ...

Editor crashes when attempting to play a recorded demo - Assertion failed: IsGameWorld() && GetCurrentLevel()

UE - Networking - Oct 9, 2018

Editor crashes when attempting to play a recorded demo - Assertion failed: IsGameWorld() && GetCurrentLevel() This issue occurs when using a template project or QAGame. This does not occur when usi ...

Control Rig parameters don't function in the AnimBP after the Editor restarts

UE - Anim - Rigging - Control Rig - Jun 14, 2020

Control Rig parameters don't function after editor restarts. Also the default values don't function and you need to use an input instead of directly editing the values of the pins. You can work aro ...

Translating bones in Persona is not affected by Snap Options

OLD - Anim - Dec 14, 2016

In Persona, moving a socket around is not affected by any changes to snapping (scale or size). Rotation is affected however. This is similar to [Link Removed], but according to James Golding there ...

Deactivated Skeletal Mesh Component Plays Animation

UE - Gameplay - Components - Aug 15, 2017

Animations on skeletal mesh components set to use an animation asset still play even when the component is deactivated. Found: 4.17 Reproduced: 4.16.3 & 4.18 Main CL# 3585944 ...

Scene Capture 2D Invisible When Mobile MSAA Enabled

UE - Platform - Mobile - Oct 11, 2017

UDN Licensee (UE4.16) changed rendering settings from MSAA "none" to MSAA x4, resulting in Scene Capture 2D not showing up in mobile preview mode. I have reproduced same results in 4.17 and 4.18. ...