Curl Noise values on water body actors causes the shore to appear broken

UE - LD & Modeling - Terrain - Water - Oct 29, 2020

Water is new so I marked this not a regression This is worse in a Lake and River actors, Ocean kinda looks okay but also might need to be looked into ...

Unicode Symbol issues on EditableText

UE - AI Workflows - UI Systems - Jul 28, 2021

Gameplay Effect Modifiers with Target Tags are Applied Incorrectly

UE - Gameplay - Gameplay Ability System - Mar 9, 2022

If you have a Gameplay Effect that uses an Attribute Modifiers, and this modifier has Target Tags specified, the modifier is applied unexpectedly:Adding a Required tag on the Target, the modifier do ...

New C++ Class (actor) fails to build

UE - Core - Cpp Tools - Mar 8, 2022

While trying to create a C++ actor to test if it can be created with a custom Copyright notice specified in Project Settings, the Live Coding window returns a "Build failed" and error of: "ERROR: U ...

Visual Noise on Thin Translucent materials with a Directional Light

UE - Rendering - Features - May 30, 2023

Regression in testing This occurs with hardware and software ray tracing, as well as moveable and static lights This occurs regardless of anti aliasing. This was tested with DX12 ...

Combined Translate and Rotate Mode broken when using Local Space

UE - Editor - Dec 22, 2023

From UDN: When using the Combined Translate and Rotate Mode we run into an issue where the rotation arrow moves twice as fast as the coordinate frame. The object itself rotates correctly, but if we ...

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"). ...

GAS: Creating an UGameplayEffectUIData blueprint will lead to a failed Data Validation

UE - Gameplay - Gameplay Ability System - Aug 16, 2024

The logic for data validation on UGameplayEffectComponent expects it to be owned by a UGameplayEffect. Any Blueprint derived from UGameplayEffectUIData (child of UGameplayEffectComponent) fails this ...

Switching project monitor with shift+win+arrow keys

UE - Rendering - RHI - Apr 24, 2025

Using Windows+Shift+Arrow keys to move the application window in Windowed Fullscreen from a low resolution monitor to a high resolution monitor does not resize the application window on a Windows 10 ...

Engine crashes when renaming assets inside an L10N folder.

UE - AI Workflows - UI Systems - Localization - Mar 3, 2026

The engine crashes when renaming a localizable asset inside an L10N folder. The engine attempts to associate it with the original localizable asset, but it is unable to find it and ends up accessing ...