Per instance custom data and Material Layers issue

UE - Rendering - Architecture - Dec 12, 2023

Blueprint Typing Potentially Incorrect when using Chooser Plugin

UE - Characters - Animation - Jan 8, 2024

This appears to be some form of type confusion. In editor, the type of the result pin is a Packed Level Actor Class Reference, but at runtime, the returned value is a BlueprintGeneratedClass. ...

Capsule component renders incorrectly with non-uniform scale

UE - Runtime - Deformable - Jan 30, 2025

Capsule component renders incorrectly with non-uniform scale because the render uses the minimum between the X and Y values and the collision code uses the maximum between the two. This issue is men ...

Niagara mesh particles invalidate lighting when "Cast Shadow" is enabled with Hardware Ray Tracing enabled

UE - Rendering - Graphics Features - Lumen - Jun 24, 2025

Lumen HWRT, combined with Niagara Mesh Renderer, can cause the Lumen Scene to be reset, resulting in a sudden change to indirect lighting. ...

Inconsistent Details Panel Focus Behavior On Enter Pressed for Blueprint-Added Components

UE - Editor - Verse Class Editor - Jul 2, 2025

When editing a component property in the level viewport, if the component was added via the Blueprint Editor, pressing Enter after changing a value causes the details panel to lose focus. This inter ...

Input Touch Hold trigger fails to reset, unlike Mouse Hold (using Enhanced Input Context)

UE - Gameplay - Input - Nov 13, 2025

When using the Enhanced Input Context, the Input Touch Hold trigger does not reset correctly after releasing a touch input. Unlike Mouse Hold, which keeps firing Canceled events as expected, Input T ...

In-app purchase fail node does not execute properly without network connection

UE - Platform - Mobile - Sep 30, 2015

In-app purchase failure nodes do not execute when there isn't any connection. ...

Sound plays twice when switching camera modes

UE - Audio - Aug 7, 2015

Playing a sound (firing weapon) and switching the camera mode will cause the gunfire sound to play twice, once from the weapon's position when it's fired and again as through the sound was coming fr ...

LIVE: LANDSCAPE: Lock Movement feature does not save state after re-opening editor

UE - LD & Modeling - Terrain - Landscape - Oct 16, 2014

Lock movement state on landscape does not save state on reloading editor. ...