Foliage: Speed tree wind is reset for every add/remove/update on instances

UE - World Creation - Worldbuilding Tools - Foliage - Jul 10, 2018

Foliage: Speed tree wind is reset for every add/remove/update on instances What is happening:When we invalidate the render state, proxy are recreated, causing the wind to be removed and add again, ...

Rect Lights does not illuminate Volumetric Fog except at extreme intensities

UE - Graphics Features - Jul 9, 2018

Rectangular Area Lights require extremely high values in order to illuminate Volumetric Fog and Volumetric Materials. This means they do not appear to match the output of other light types of identi ...

Cine Camera focus does not blur transparent materials

UE - Graphics Features - Jul 9, 2018

The cine camera focus does not blur transparent materials. Found In 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 Preview 5 CL# 4173640, 4.21 CL# 4195822 ...

Phantom Collision with Default Engine Cube Statich Mesh

UE - Simulation - Physics - Jul 7, 2018

The default engine cube meshes collision appears to be incorrect an causing a phantom collision. Found in 4.19 #CL 4033788, 4.20 Preview 5 CL# 4173040, 4.21 CL# 4188563 ...

Changes made to default values in a subobject nested within a subobject are not propagated to child Blueprints

UE - Gameplay - Blueprint - Jul 6, 2018

When a Blueprint contains multiple layers of nested subobjects, any subobjects below the top-most layer do not have changes to their properties propagate to child Blueprints. See attached project (c ...

Media Sound Component does not respect SoundClass Volume on Android

UE - Platform - Mobile - Jul 6, 2018

Media Sound Component, Sound Class Volume not applied on Android. Tested with Galaxy S5 4.19.2 CL 4033788 4.20p5 4173640 4.21 CL 4179794 - Packaging error on android ...

White Artifacts on the Edges Static Meshes with MSAA enabled

UE - Graphics Features - Jul 6, 2018

White artifacts will appear on the edges of static meshes with MSAA enabled. If you change to deferred shading the issue is still there however it is less noticeable. Similar to UE- Founding in ...

Crash after playing using FX.AllowGPUParticles during play

UE - Niagara - Jul 6, 2018

If user use "FX.AllowGPUParticles 0" during play, a crash will occur after the play ends ...

Reading LightAttenuationTexture Produces Unexpected Results With Forward Rendering

UE - Graphics Features - Jul 5, 2018

The expected behavior occurs in 4.19; unexpected behavior occurs in 4.20 and 4.21. Marking this as a regression. Per User: Reading the LightAttenuationTexture in a material receives interference ...

When Packaging a Blueprint Nativized Game, Child Actor BeginPlay is ignored and Parent BeginPlay is triggered instead

UE - Gameplay - Jul 5, 2018

In a Blueprint Nativized Packaged Game a child Blueprint will trigger its parent logic instead of its own when it is called. This was reported in 4.20 Preview 5 (CL-4173640). This issue has been r ...