Engine crashes with AudioMixer if the sound is disabled in the system

UE - Platform - Linux - May 16, 2019

Seems like failure to init SDL device is not being properly propagated and something on the higher level keeps pushing commands to the (non-existent?) audio thread. Paging also [Link Removed] and [ ...

Remove GLES specific Y axis flip from tonemapper and post process materials

UE - Graphics Features - May 16, 2019

6426212 introduced additional permutations to tonemapper and post-process materials for the GLES platforms. Prior to this change the tonemapper was always rendered with Y axis inverted. The intenti ...

Scene component appears to render in the incorrect location after calling SetWorldLocation() in editor

UE - Gameplay - May 16, 2019

Calling SetWorldLocation() on a USceneComponent derived component causes the rendering for the component to stop updating. The position can still be modified and the values will change, but it rende ...

Niagara Sub UV Index ignored

UE - Niagara - May 16, 2019

Using the Particles.SubImageIndex has no effect on what portions of the a UV are rendered in Niagara. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6533064) ...

Action RPG- ARPG CharacterBase::GetHealth() Null Crash

Docs - Samples - May 16, 2019

In Action RPG Sample, NPC Blueprints "NPC_Goblin_Level_01,02.03"  cannot be Duplicated.   Crash results lead to ARPGCharacterBase.Cpp Get Health function. float ARPGCharacterBase::GetHealth() const ...

Tooltips incorrect when changing FExpressionInput of UMaterialExpressionTextureSample

UE - Rendering Architecture - Materials - May 16, 2019

It seems that the display of ToolTip is displayed in the order of declared UPROPERTY () of the code.[Image Removed] ...

The screen will be darker than other platforms(Android,PC/Mac preview) on IOS if both MSAA and MobileTonemapperFilm enabled

UE - Platform - Mobile - May 16, 2019

[Image Removed] [Image Removed] [Image Removed] [Image Removed] ...

Remapping morph targets will crash if you have a cloth section

OLD - Anim - May 15, 2019

By calling FLODUtilities::SimplifySkeletalMeshLOD on a mesh with cloth sections that is set to remap morph targets, a crash occurs. This seems to be due to the indexing of sections with/without incl ...

Geometry Cache crashing when loading async in a cooked build

UE - Editor - Content Pipeline - Import and Export - May 15, 2019

Geometry cahces check if they are in the game thread, which causes a crash when their packages are async loaded in a cooked build. ...

Ensure When Adding Nodes to Material Graph in Forward Shading

UE - Graphics Features - May 15, 2019

Ensure occurs when adding a Constant3Vector to the Material Graph in Forward Shading. Works as expected in 4.21 CL# 4753647 Found in 4.22 CL# 6063286 and 4.23 CL# 6395561 ...