Crash at startup when vcomp140.dll prerequisite is missing.

TM - Interoperability - May 3, 2024

Some users are experiencing a Crash at startup because of missing vcomp140.dll prerequisite. ...

Using Clip() in a material may cause the outline to be displayed incorrectly on the Editor.

UE - Graphics Features - May 3, 2024

This appears to be from an interaction between the Depth Fade Expression, clip() in a Custom Expression, WPO being enabled, and the fact that the pass that draws objects for the editor outline runs ...

DumpShaderStats doesn't output any shader data

UE - Rendering Architecture - Shaders - May 1, 2024

The DumpShaderStats console command doesn't output any shader stats because the code to calculate that information in DumpShaderStats (Shader.cpp) is commented out https://github.com/EpicGames/Unrea ...

Nanite static mesh components are not individually highlighted when selected

UE - Rendering Architecture - Apr 30, 2024

Non-nanite static mesh components still show an individual highlight outline which individually selected even with other non-nanite static mesh components in the same actor. This is different when t ...

"Consume pointer input" on Common User Widget does not work on iOS, FReply::Handled not respected

UE - Editor - UI Systems - Apr 29, 2024

From a UDN, they also mentioned:  Update: I added CommonUI to the test project to try the "Consume pointer input" setting. It behaves the same way as our custom input blocking widget in that the in ...

USplineComponent still editable in viewport despite setting as "read-only".

UE - Framework - Blueprint Editor - Apr 29, 2024

A spline component continues to be visible and editable in-editor despite all attempts to disable the functionality through the component's settings or uproperty specifiers. ...

Masked TwoSided material causing lumen direct lighting to leak through walls

UE - Graphics Features - Lumen - Apr 23, 2024

It appears that LumenScene's Hardware Ray Tracing is causing light leaking into a sealed room (which should be perfectly black). This bug does not appear to happen on AMD GPUs. ...

City Sample vehicle does not always produce an EndOverlap Event

UE - Simulation - Physics - Apr 23, 2024

Reported on UDN: Something in the setup of the City Sample vehicles means that if a vehicle starts inside a  Box Collider Component then it won't generate an EndOverlap when exiting. Vehicles in ge ...

Creating MaterialInstanceDynamic for a moving/crumbled geometry collection component, the rendering position is reset to the initial location

UE - Simulation - Physics - Destruction - Apr 23, 2024

Creating a MID makes the render state dirty and the engine will recreate a new scene proxy without the current attitude. This results in rendering the object in incorrect location. Here is a tempor ...

Reloading string table assets breaks references to strings and logs warnings

UE - Editor - UI Systems - Localization - Apr 22, 2024

When using the "Reload" asset action on a String Table asset, any Text variables that reference the string table would break and say "<MISSING STRING TABLE ENTRY>". ...