"StaticFindFirstObject: Ambiguous object name" on delegates with timelines in packed level actors

UE - World Creation - Worldbuilding Tools - Level Instances - Jan 31, 2024

WPO is incorrectly generated on materials using Material Attributes as input to Landscape Layer Blend node

UE - Rendering Architecture - Materials - Jan 31, 2024

This comes from this UDN : [Link Removed] It occurs with this setup :  [Image Removed] , where Set Material Attributes expressions act as inputs to the Landscape Layer Blend material expression. ...

Streaming Virtual Texture UDIN V Offsetting

UE - Editor - Content Pipeline - Import and Export - Jan 31, 2024

UDIN virtual textures appear to have row 0 (U coordinate [0 - 1) swapped to the other side of the texture vertically. ...

Keep Simulation Changes does not work for Actors that have replaced root component

UE - Gameplay - Components - Jan 31, 2024

RelativeLocation and RelativeRotation in the root component are collected in UActorComponent::AllUCSModifiedProperties, so copying simulation result is skipped in EditorUtilities::CopyActorPropertie ...

Based movement ticking dependency may be incorrect if standing on a part of a Child Actor

UE - Gameplay - Player Movement - Jan 31, 2024

When an actor has a Child Actor Component that's a valid moving base for a character to walk on, the ticking prerequisites are set against the Child Actor and not the root owning actor that actually ...

Breakpoints in BP Actor Construction Scripts can freeze the editor in several circumstances

UE - Gameplay - Blueprint Editor - Jan 31, 2024

Placing a breakpoint inside of the construction script of a blueprint Actor can cause the editor to freeze in some situations. The licensee has identified two such cases. The first is when opening ...

UCommonVideoPlayer/Electra does not work in 5.3

Media Framework - Jan 30, 2024

This appears to be connected to playing immediately upon opening. This behavior is not observed when in the Release-5.1 or Release-5.2 streams. With the same setup, the video will start playing on t ...

Widgets will bind input delegates to the Player Controller's Input Component, but never unbind them

UE - Editor - UI Systems - UMG - Jan 30, 2024

This is a bug introduced with 18468289 a while ago. We added this functionality for [Link Removed], which allows input event nodes to be placed within widgets and have them behave correctly.  This ...

Groom couldn't be rendered into ObjectID pass through MRQ

UE - Anim - Sequencer - MRQ - Jan 30, 2024

Raise the issue here since also other Developers met the same problem and reported to me. Object ID rendering for Groom is working in previous version(5.0 for example) ...