Undo and ConstructionScript break the AttachChildren array

UE - Gameplay - Components - Nov 14, 2019

Undo fills AttachChildren array with null by the undo serializer. After that, a construction script tries to remove child components from parent component's AttachChildren but it can't find its poi ...

Capsule Indirect Lighting with ILCQ Volume breaks on Skeletal Meshes when making Sublevel visible not in the current Camera Frustum

UE - Graphics Features - Apr 12, 2017

When using Capsule Indirect Shadows for Skeletal meshes who have their ILCQ set to Volume, and loading a SubLevel with it's actors not within the current camera's view, the indirect lighting is blac ...

SSR on Translucency is not affected by Post Process Volume

UE - Graphics Features - May 24, 2018

Screen space reflections on translucent materials are not affected by post process settings. Any changes made to SSR settings in the volume will do nothing to a material that is set to the transluce ...

Unable to change the 'Actor to Track' on Cine Cameras when the target Actor is in a different Sublevel

UE - Anim - Sequencer - Jul 2, 2018

You are unable to track Actors that are in different sublevels when using Cine Cameras. The 'Actor to Track' is set back to none if the target Actor isn't in the same sublevel as the Camera. This is ...

Oculus Go & Quest: Relaunching app immediately after exiting causes device to freeze

UE - Platform - XR - Jul 26, 2018

4.20 Oculus Go projects cause the device to lock if immediately relaunching after exiting. It does not occur if:You wait ~20 Seconds before relaunchingYou press the power button after closing the a ...

Material Function Input Displays Incorrect Data Type for Volume Texture, Static Bool, Material Attributes, and External

UE - Rendering Architecture - Materials - Aug 20, 2018

The material function Input Displays incorrect data type for Volume Texture, Static Bool, Material Attributes, and External. The function will still work properly however the type data is displayed ...

HotReload: Static Mesh property reset on custom Static Mesh Component in Pawn Blueprint when a public property is changed to private in the parent Static Mesh Component code class

UE - Gameplay - Blueprint - Aug 24, 2018

Performing a Hot Reload after changing some properties in a custom Static Mesh Component code class from public to private appears to reset the static mesh set for any Pawn Blueprints that use that ...

After loading a SubLevel from the PersistentLevel of WorldComposition, the offset of WorldComposition is applied when loading the SubLevel alone

UE - World Creation - Worldbuilding Tools - World Composition - Aug 30, 2018

When loading a Sub Level from the Persistent Level of World Composition, the offset of WorldComposition is applied when loading the Sub Level by itself. The offset can be applied repeatedly when rel ...

Using 'Set Input Mode to Game and UI' and enabling 'Use Mouse for Touch' causes the Mouse to appear in different positions

Tools - Sep 13, 2018

When using 'Set Input Mode to Game and UI' and enabling 'Use Mouse for Touch' this causes the Mouse to appear in different positions and change the direction the camera is facing. This is a regressi ...

GetAssetRegistry by class and subclass only works for Material data types

UE - Gameplay - Oct 16, 2018

The GetAssetRegistry blueprint node only produces the asset data for the Material class and its subclasses. It completely ignores the asset data for Actor, derived Actor class Blueprints, and the su ...