Blueprint Interface Implemented and Inherited Interface naming is reversed

UE - Gameplay - Blueprint Editor - Nov 4, 2022

Naming for Inherited Interfaces and Implemented Interfaces is reversed in 5.1 and Main. Inherited interfaces act like implemented interfaces, and inherited interfaces appear listed under Implemented ...

Artefacts with Volumetric Clouds

UE - Graphics Features - Nov 2, 2022

(Enduring Games) Please see UDN - Case includes project and potential fix from customer. Need to verify that it does not affect other parts of the volumetric composition. bHasValidSamples is the sam ...

Auto-creation of SmartObjectCollection is often undesired

UE - AI - SmartObject - Nov 2, 2022

Right now whenever a new world is created in the editor we automatically spawn a SmartObjectCollection actor for it, regardless of whether there are SmartObjects on the map. The SmartObjectCollectio ...

Fbx scene importer: memory corruption

UE - Editor - Content Pipeline - Import and Export - Oct 27, 2022

Mirror Data Table is NOT added SyncMarker automatically when creating

UE - Anim - Runtime - Oct 27, 2022

Mirror Data Table is added rows about Bone, Curve, Notify when creating. But SyncMarker is ignored. The following codes can fix this issue. Engine/Source/Runtime/Engine/Private/Animation/MirrorDa ...

Clear FileItem cache when deleting files to prevent stale cached data

UE - Foundation - Cpp Tools - Automation Tool - Oct 26, 2022

Should be straightforward, the UDN that reported this deletes all files using the FileItem interface so they can clear out the entry from the cache dictionary but there may be a way to just invalida ...

ProcessPriority performance consideration with Generation 12 Intel CPUs

UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 26, 2022

It has been noted that the default BelowNormal process priority set in UnrealBuildTool is not handled well with the Gen 12 Intel CPUs as processes are only scheduled on the E-Cores which causes degr ...

Crash occurs when selecting Reset this Property to Default Value in the Class Settings of a new Child Animation Blueprint

UE - Anim - Runtime - Anim Blueprints - Oct 26, 2022

This is a Regression. Tested in //UE5/Release-5.0 CL20979098 - "None" is not an option for the parent class and the "Reset this Property" is not initially there. Crash occurs when selecting Reset t ...

Linked Anim Layer node can become stuck in a single state when attempting to change the Layer

UE - Anim - Runtime - Anim Blueprints - Oct 25, 2022

When swapping Layer settings between various Animation Layers on a Linked Anim Layer node, the node can become stuck in one state. The node will become stuck in the Linked Anim Layer state and canno ...

Editor asserts when deleting a morph target from a skeletal mesh

UE - Editor - Content Pipeline - Asset Build - Oct 24, 2022