REINST classes are available in the class reference drop down

UE - Gameplay - Blueprint Editor - Sep 28, 2021

This doesn't seem to occur every time I run the editor, I can't get it to repro consistently Note: It is possible that this is happening in blueprints based off of a native c++ class has been rel ...

Get wrong primitive scene data on mobile preview with GPUScene enabled

UE - Rendering Architecture - Shaders - Apr 27, 2022

Blueprint actors can not be casted until they have been opened after migration or being upgraded to a more recent engine version

UE - Gameplay - Blueprint - Jan 5, 2023

This is not a regression tested in //UE5/Release-5.0 CL20979098 After migrating an asset from an older engine version or upgrading a project to newer version Blueprints carried over can not be cast ...

Decal normals causes underlying shadow masks to become visible

UE - Graphics Features - Oct 14, 2024

When using a Translucent or Modulate blend mode decal, the underlying shadow may become visible with VSMs, RT Shadows, and with the Pathtracer. When no normal is applied and a sphere is used to tes ...

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

UE - 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 - Workflow Systems - 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 ...

Start Up Movies Require Click when Finished to Open Level

Tools - Sep 11, 2015

After a Start Up movie has completed playing, the initial default map will not load until the user clicks the mouse. The option to 'Wait for Movies to Complete' is checked which will force the user ...

Actors spawned at runtime and moving via SetActorLocation do not generate hit events with static objects

UE - Simulation - Physics - Feb 1, 2016

When an actor that is spawned at runtime is moved via SetActorLocation and collides with a static object, no hit events will be fired. If the same static actor begins simulating physics, the dynamic ...