Lumen with HWRT has an artifact on AMD GPU

UE - Graphics Features - Lumen - Feb 6, 2024

Repro test required.We don't have AMD GPU to create the same environment here, so we collected reproduction information from the licensee and passed it on as is.Let me know if you need any additiona ...

Atmosphere Sunlight shafts, artifacts, for both cascaded and virtual shadow maps.

UE - Rendering Architecture - Feb 5, 2024

Very large objects casting dynamic shadows on the sky atmosphere can lead to flickering (cascaded shadow maps) or square patterns (virtual shadow maps). ...

Duplicated ChildActor on World Partition Streaming

UE - World Creation - Worldbuilding Tools - World Partition - Feb 5, 2024

The issue is encountered when streaming a world partition an actor with an AChildActorComponent which generates 2 instances instead of one when run as a client in the editor. This behavior does not ...

When the Groom asset LOD switches from Strands to cards, hair rendering is stuttered

MetaHuman - Feb 3, 2024

It only happens when changing LOD from strands to cards.not in situations where changing LODs from cards to cards, cards to strands, strands to strands. The card meshes are not rendered immediately ...

UDataTableFunctionLibrary::AddDataTableRow() fails for blueprint-defined row structure types

UE - Gameplay - Blueprint - Feb 2, 2024

The editor-scripting blueprint node "Add Data Table Row" fails when the Data Table uses a Row Structure that was defined in blueprint. Internally, it checks if the passed-in UScriptStruct is derived ...

Skip Assigning Gamepad to Player 1 does not work

UE - Gameplay - Input - Feb 2, 2024

This is a regression from a long while ago that needs to get fixed ...

Filter for key value of TMap variable does not work in editor

UE - Editor - Workflow Systems - Feb 2, 2024

In the variable filtering of the Blueprint editor, the key value of the TMap variable is not filtered.  ...

Crash when duplicating component with Instanced property initialized with CreateDefaultSubobject

UE - Framework - Feb 2, 2024

An editor crash can be observed when copy-pasting an actor with an actor component with an instanced object property when set to a non-default value. Detailed steps to reproduce are provided below. ...

5.3 crashes when loading a map with an actor that had the class of one of its components changed

UE - Gameplay - Components - Feb 1, 2024

Create a blueprint based on actor, give it a SceneComponent named ExampleComp (BP_TestActor) - this should be the blueprints only componentCreate a new level (TestMap), place an instance of the bluepr ...