Blueprint functions with component targets lose component target when copied/pasted

UE - Gameplay - Blueprint - Mar 17, 2015

Functions that are created with specific component targets lose their target when copied/pasted. ...

Paper 2D Sprites rendering incorrect Color

UE - Gameplay - Paper2D - Jun 11, 2015

The Vertex (Sprite) Color is rendering a higher value than the color picker has set. In 4.7.6 this is consistent for Materials as well, but in 4.8 and 4.9 only the Paper2D elements are rendering at ...

Crash when loading TM-MotionControllers in a packaged build

Docs - Samples - Oct 26, 2016

Packaged QA Game crashes when opening "TM-MotionController" This issue did not occur in 4.13 This is also affecting KiteDemo. Cinematic will crash when Editor Content is not included in the packag ...

UMG/Slate scroll bars have a minimum size for scaling

UE - Editor - UI Systems - Mar 14, 2017

A user has reported an issue about scroll bars having a minimum size in UMG and Slate code, causing them to not scale correctly when the scroll box is at a smaller size. This affects both horizontal ...

widget shows up solid white on iOS

UE - Platform - Mobile - Jul 24, 2017

The web browser widget does not appear to load correctly on iOS. It appears as a solid white block. This has been seen on: iPhone X, v11.4 (A11 Bionic) iPhone 6, v11.4 (A8) It did not occur on a ...

Editor crashes when building a level containing landscape if Preview Rendering settings are set to Default High End Mobile.

UE - Graphics Features - Aug 31, 2017

Editor crashes when building a level containing landscape if Preview Rendering settings are set to Default High End Mobile. This is a regression. This is working on 4.16 3-3561208 This is not wor ...

Function boolean return nodes often set to true will default to false once saved project is closed/reopened

UE - Gameplay - Sep 1, 2017

The new function output booleans within blueprint class actors are not saving intended true/false entries. This issue is a regression. Works in: 4.16.3-3561208 Does not work in: 4.17.1-3586342 and ...

ARCore failing to package

UE - Platform - XR - Sep 26, 2017

Users reporting packaging issues with ARCore plugin enabled in 4.18 preview #1 and #2: https://answers.unrealengine.com/questions/709840/418-android-packaging-fails-with-arcore-plugin-ena.html ...

Shader used factories/types/pipelines should be in DDC key

UE - Graphics Features - Jan 31, 2018

A licensee noticed that the ShouldCache types for FLandscapeMaterialResource changed in the 4.18.2 but this did not affect the DDC keys generated. This caused an endless compilation loop where the s ...

Welded grandchildren do not overlap properly when their grandparent is simulating physics

UE - Simulation - Physics - Jun 7, 2018

Grandchildren (C in an attachment hierarchy of A < B < C) that are auto welded have issues related to overlap events when moving via physics. They tend to overlap later than they should. This does n ...