Some instances spawned by NeagaraDataInterfaceChaosDestruction breaking event will be set location to the world origin

UE - Niagara - Data Interface - Nov 29, 2024

 The following code can often be found in UNiagaraDataInterfaceChaosDestruction.const int32 ParticleID = ParticleIDParam.GetAndAdvance() - LastSpawnedPointID + 1; The LastSpawnedPointID is usual ...

Call-In-Editor functions in an EditorUtilityActor are not called in editor

UE - Gameplay - Blueprint - Mar 22, 2024

In 5.1 through 5.3, Call-In-Editor functions within EditorUtilityActor Blueprints created via Create Advanced Assets/Editor Utilities/Editor Utility Blueprint are not callable in editor. Prior to 5 ...

Double clicking on Interface Function in Blueprint Graph does not take you to the function implementation.

UE - Editor - Jan 11, 2024

When double-clicking on an interface function call within a blueprint, the expected behaviour is that it will take you to the implementation of this function. However, it currently does nothing. ...

Specular/Anisotropy problems with Nanite Meshes

UE - Rendering Architecture - Jan 11, 2024

Specular highlights can disappear with clearcoat materials, when "Clear Coat Enable Second Normal" is enabled ("r.ClearCoatNormal"). ...

Non-existing config file loading could cause memory leak

UE - Foundation - Core - Oct 19, 2023

The cause of this problem is the Engine has code paths which register a new allocated object to Map without deleting the previous object. In the repro project, whenever hitting Space Bar, the level ...

Collision between physicalized actors and instanced static meshes produce warnings.

UE - Simulation - Physics - Sep 25, 2023

Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...

Blueprint "Set by ref" (UK2Node_VariableSetRef) does not mark properties dirty for push replication

UE - Gameplay - Blueprint - Sep 7, 2023

When using Push Replication with blueprints, UK2Node_VariableSetRef nodes do not mark a property as dirty and so the variable is not replicated. ...

Scene View Extension - Subscribing to Tonemap's afterpass renders black screen

UE - Rendering Architecture - Aug 31, 2023

Callbacks for the Tonemap's afterpass that return identity return black screen unless there is a post-process material. ...

Static Mesh Scene Actor Flipped Normals

UE - Rendering Architecture - Aug 31, 2023

Static meshes can have normals flipped when the actor they are attached to has one component of its scale inverted. ...

Sound Attenuation settings do not function when Allow Spatialization is False

UE - Audio - Spatialization - Aug 3, 2023

Override Sound Attenuation setting does not work, Sound will play at max volume regardless of distance between source and observer. ...