Changing Blueprint Interface's Const Status Doesn't Update Blueprints its Already Implemented In

UE - Gameplay - Blueprint - Nov 8, 2016

Implementing an interface that contains const functions and later attempting to change these functions to be non-const does not update the status of the functions inside of the actor they are implem ...

r.ScreenPercentage.Editor does not function

UE - Graphics Features - Jun 2, 2016

Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...

EQS Context modifications Crashes Editor

UE - Gameplay - Aug 29, 2018

Making changes to the EQS Context and moving the Testing Pawn, the Editor crashes. When reopening the Editor, the context is set and the query does generate from that actor/location. This issue was ...

Logs containing UTF-8 characters don't appear in CMD/Terminal on Linux

UE - Platform - Linux - Sep 5, 2018

If a log message contains UTF-8 characters like "ő" or any Russian one ("л") it won't be printed to cmd or terminal but it will be printed to the log file. This is a regression from 4.19.2 (CL-40337 ...

Offset Root Bone Node needs reconstruction from velocities

UE - Anim - Jul 16, 2025

The experimental Offset Root Bone node does not respect velocities, meaning that it does not work when a character is based on a moving platform. The capsule will rotate with the platform, but the r ...

Light function materials using WorldPosition do not render correctly to volumetric fog if there is more than one

UE - Graphics Features - Mar 27, 2023

There is a one-line fix for this in a shader file, see their PR on GitHub:https://github.com/EpicGames/UnrealEngine/pull/10251/files ...

Xcode 8 Beta Toolchain Breaks InfiltratorDemo on AMD On 10.11.6

UE - Platform - Apple - Jul 27, 2016

InfiltratorDemo rendering is entirely broken on 10.11.6 using AMD GPUs when the shaders are compiled to byte code using the Xcode 8 Beta 2 toolchain. This does not appear to occur with the Xcode 7.3 ...

No return value for the Add nodes for Map/Set variables

UE - Gameplay - Blueprint - Jun 5, 2018

Add nodes for variables using the container type Set/Map do not have a return values that states if an element was successfully added. The tool tip states that this should be the case. This return v ...

Orthographic View doesn't respect the default Character Rotation

Tools - Aug 22, 2018

Orthographic doesn't respect the default character rotation of -90 degrees. This is reflected when viewing the Third Person character in Right/Left and Front/Back Orthographic views. This issue was ...

Can Not Add New Montage Section Name to a Montage on a Mac

OLD - Anim - Nov 21, 2017

-Section Name shows up on Windows and not Mac -Does not occur in 4.17.2 Currently waiting to test in 4.19 ...