Instanced Stereo setting crashes engine when building lighting, creating a vector3 or disabling setting

UE - Platform - XR - Apr 4, 2022

After further investigation we noticed that the issue is arising from the Instanced Stereo setting. When creating a Vector3 in a new material, building lighting or disabling the Instanced Stereo set ...

GI Indirect Lighting Intensity No Longer Influences Reflection Capture

UE - Graphics Features - Nov 21, 2016

The post process setting "indirect lighting intensity" no longer influences the brightness of reflections created by reflection capture actors. ...

[Feature Request] Light Complexity view mode broken in Forward Rendering

UE - Graphics Features - Mar 28, 2018

When forward shading is enabled, the light complexity view mode just displays black surfaces. ...

Unable to save Blueprint Function Library if it references a string table entry

UE - Editor - UI Systems - Localization - Apr 4, 2019

Regression. Function library saving crashes if it references to a string table entry. ...

Specular Scale 0 on Light still affects Groom asset

UE - Rendering - Architecture - Jul 30, 2025

When a light's Specular Scale is set to 0, the specular still affects hair / groom assets. The specular of other assets (like a shiny static mesh in the scene) is properly affected by the change.  ...

Pin wires do not connect correctly after collapse to function and duplication

UE - Gameplay - Blueprint - Mar 20, 2017

Pin wires do not connect correctly after collapse to function and duplication. Any node can cause this issue, I used an INT variable because it was quick to test with. Regression: This issue affect ...

Static code functions cause associated blueprints to not compile after a hot reload

UE - Foundation - Cpp Tools - Hot Reload - Oct 14, 2016

If a function inside a BlueprintFunctionLibrary class is declared as static, instances of the function node inside blueprints cause the blueprint to not save after a hot reload. This does not affec ...

Typo in Content description field for Flipbook Material Expression Function Output

UE - Content - Engine - Jan 17, 2020

**Typo in Content description field for Flipbook Material Expression Function Output ...

Overridden custom functions have inputs locked when parent actor is altered

UE - Gameplay - Blueprint - Sep 14, 2016

Overridden custom functions have inputs locked when parent actor is set to different blueprint type. Regression (no) issue (does) occur in 4.12.5 ...

Crash occurs when adding code to custom node in Material Function.

UE - Graphics Features - Mar 16, 2021

A Salesforce ticket reports that entering the above code into a custom node in a Material Function causes a crash. I was able to repro his crash reliably. This is a regression. Working as expected ...