Translucent Surface Material and Additive Particles not rendering on Metal in Shipping/Distribution

UE - Platform - Mobile - Oct 22, 2015

Certain Translucent Materials with Surface Lighting Models and Additive Material based Particle Systems will not render in Shipping/Distribution configuration using Metal Rendering on an iPhone 6*. ...

Procedural Foliage Blocking Volume Blocks Sight Perception

UE - AI - May 25, 2016

Sight perception is being blocked by Procedural Foliage Blocking Volumes. Setting the volume to No Collision resolves the issue, but then the volume will not block foliage. Found in 4.12 Preview 5 ...

Buffer Visualization for DecalMask is missing

UE - Graphics Features - Feb 29, 2016

The Buffer Visualization for DecalMask is no longer an option. Also, when looking at the Buffer Visualization Overview the DecalMask slot has been removed. See attached image for comparison Worke ...

Cannot Add Actor Blueprints to Object Library When Base Class is Set to Actor

Tools - Jan 25, 2016

Setting the base class dropdown of an Object Library to Actor prevents you from being able to add any actors to the library. This occurs even when the Has Blueprint Classes bool is checked. Found ...

AI Perception Peripheral Vision Angle Degrees Being Doubled

UE - AI - Jun 7, 2016

Any value that is set for Peripheral Vision Angle Degrees in an AI Perception component's Sight config is doubled. This does not occur with the PawnSensing component, which is inconsistent behavio ...

Custom iOS icons don't appear on device for Windows BP projects (Binary Build)

UE - Platform - Mobile - May 4, 2018

iOS icons have stopped working for Windows BP projects again; this does not occur on Mac. It also does not occur when using a source build from p4 (only on a binary build from the launcher). Note t ...

[SM5] Material.usf Error when Previewing Material Function Output

UE - Graphics Features - Jul 21, 2016

A user on the AnswerHub found an SM5 material error within his material function after following the tutorial below. [Link Removed] I followed the tutorial until I reached the point in which the e ...

Pick New sprite option becomes unavailable if you change the view options

Tools - Jan 4, 2018

The Pick New sprite option becomes unavailable if you change the view options to either tile or column when working with the keyframes of a 2D animation. This issue affects the project indefinitely ...

Crash When Adding Actor Component Tagged 'Within' to a Game Mode Blueprint

UE - Gameplay - Components - Apr 25, 2016

Crash occurs when attempting to add an actor component c++ class to a game mode blueprint if the actor component is tagged with the Within="GameMode". Found in 4.11.2 binary, reproduced in 4.10.4 ...

Undoing In Blueprint Editor Clears Component Selection

UE - Gameplay - Blueprint - Apr 25, 2016

When editing a value in the details panel of a component, if you attempt to undo the changes, the component is no longer selected. The value gets undone as expected, but it is unexpected that the co ...