Mesh Space Additive behave differently for non-animated bones and extra bones on a target skeleton

UE - Anim - Runtime - Dec 6, 2023

Typically, non-animated bones behave the same way as extra bones on a target skeleton. However, it appears that this isn't the case for mesh space additive sequences. When a bone is present on th ...

Object Position of individual instances within the Landscape Grass system

UE - Rendering Architecture - Materials - Dec 6, 2023

Object Position material node doesn't work for individual instances. ...

Using GameCenter from iOS15 onwards requires a plist entitlement key

UE - Platform - Apple - Dec 6, 2023

Apple added a new Entitlement plist value starting with iOS15 to allow connecting with GameCenter.  It's a boolean value with the key: com.apple.developer.game-center Without it, the app can not co ...

Light function broken on AMD GPUs

UE - Rendering Architecture - Dec 6, 2023

The licensee reported this happening on the following cards with the latest driver versions: ● RX 6600 ● RX 5700 The Licensee reported it did not happen on these cards: ● RX 580 ● Non-AMD cards Our ...

"Right-click -> Set Current Preview Mesh" option does not exist for Montages.

UE - Anim - Gameplay - Dec 6, 2023

Related UDN: [Link Removed] ...

When adding the UIRenderer to the Movie Render Queue, the rendering output is a difference in PIE and MRQ.

UE - Anim - Sequencer - MRQ - Dec 5, 2023

UI rendering in PIE and UIrenderer rendering in MRQ produce different output results. This is because when dealing with fades in the UI, the rendering results should not be different.  Workaround ...

Gameplay Ability Component Montage Replication incorrectly handles cyclic animation sections

UE - Gameplay - Gameplay Ability System - Dec 4, 2023

In AbilitySystemComponent_Abilities.cpp, the check for the client being on a different section on line 3059 checks that the RepNextSectionID is not the current section. One would assume this is beca ...

Renaming actors between levels during PIE causes issues

UE - World Creation - Worldbuilding Tools - OFPA - Dec 4, 2023

When renaming actors during PIE the actor generates a new, non memory/temporary, actor package underneath the PIE world- this is then causing checks in EnumerateMemoryAssetsHelper (in AssetRegistry. ...

Navisworks - Crash exporting high poly density terrain geometry

UE - Editor - Content Pipeline - Datasmith - Exporters - Dec 4, 2023

Nanite cast shadows from all lights, regardless of lighting channel configuration

UE - Graphics Features - Nanite - Dec 4, 2023

This behavior is inconsistent with the behavior of non-nanite meshes, which receive light and cast shadows only from lights in the same lighting channel. [Image Removed] ...