ResavePackagesCommandlet needs to handle resaving ExternalActors for -FixupRedirectors

UE - World Creation - Worldbuilding Tools - Dec 19, 2023

ResavePackagesCommandlet -fixupredirects fails to fixup pointers from external actors that are pointing to objectredirectors. It fails to fixup those pointers because we specifically skip loading of ...

SwapRootBone_Actor ignores a relative rotation

UE - Anim - Sequencer - Dec 19, 2023

When we use SwapRootBone_Actor, we expect to move in the X-axis direction, which is the forward direction of the Actor. However, it does not take into account the RelativeRotation of the Skeltalmesh ...

Additive Animation does not work as intended when Ref Frame Index is more than zero

UE - Anim - Runtime - Dec 19, 2023

In some conditions, additive animation shows different/wrong behavior on Standalone Game and packaged game, from the other PIE. Watch the attached video. [Link Removed] The key points to reproduce ...

Animation attributes - user defined structs containing types defined in plugins cannot be registered

UE - Anim - Runtime - Dec 18, 2023

This issue is caused by us forcing user defined structs to be loaded as part of AttributeTypes::Initialize.  That is called after at the ObjectSystemReady run phase during engine initialization howe ...

Enhanced Input Action Triggers may be silently ignored when using multiple bindings in a context

UE - Gameplay - Input - Dec 15, 2023

The root cause appears to be an order of operations change made for [Link Removed] (CL 18309493 in UE5/Main). On EnhancedPlayerInput.cpp:238, the TriggerStateTracker is combined with state evaluated ...

GAS: FGameplayAbilitySpecHandle lacks invokable serialize function

UE - Gameplay - Gameplay Ability System - Dec 15, 2023

FGameplayAbilitySpecHandle is a struct that can be replicated by-design to identify a granted GameplayAbility in server-client communication. This works fine with default struct replication using FR ...

FColorSpaceTransform Crash on Linux due to misalignment

UE - Virtual Production - Rendering - Color - Dec 15, 2023

FLinearColor FColorSpaceTransform::Apply(const FLinearColor& Color) crashes while attempting to VectorLoadAligned() when running the UnrealEditor on Ubuntu 22.04. ...

Nanite custom depth rendering is missing support for r.CustomDepthTemporalAAJitter=0

UE - Graphics Features - Nanite - Dec 14, 2023

Nanite custom depth rendering doesn't "de-jitter" the view parameters for custom depth rendering when r.CustomDepthTemporalAAJitter is set to 0. This was discovered by a licensee and reported via U ...

Crash on paste of subcategory in the details panel

UE - Editor - Workflow Systems - Dec 14, 2023