Datasmith imports glossiness Texture as a Normal Texture

UE - Editor - Content Pipeline - Datasmith - Exporters - Sep 6, 2018

The Datasmith Importer for 4.20 (4.20E2) imports Glossiness Textures as Normal Maps. This is a regression from 4.19.2 (0.182) as Glossiness Textures were imported as World Textures ...

Component default data can be lost for a non-nativized Blueprint class that inherits the component from a nativized parent Blueprint class.

UE - Gameplay - Blueprint - Sep 5, 2018

This is a regression that was introduced by the fix for [Link Removed]. The fix makes an invalid assumption that instances of components whose archetypes are inherited by a non-nativized child Blue ...

Blueprint Projects can't make APK without compiled .so Error when packaging for Android with any Plugin Disabled

UE - Platform - Mobile - Sep 5, 2018

Blueprint Projects can't make APK without compiled .so Error when packaging for Android with any Plugin Disabled. Also seeing Gradle errors if SteamVR plugin is disabled. Setting min version to 14 ...

Actors in TMap Blueprint Properties are not copied properly for PIE

UE - Foundation - Core - Sep 4, 2018

Actors that reside in TMap blueprint variables refer to the Editor actors not the copied UEDPIE actors (that we'd expect) when accessed in PIE. This is not the case in standalone; this only occurs f ...

Instance Static Mesh instance doubles when upgrading from 4.18 to 4.19 or higher

UE - World Creation - Worldbuilding Tools - Foliage - Sep 4, 2018

Instance Static Mesh instance doubles when upgrading from 4.18 to 4.19 or higher. According to Licensee, manual check is difficult. ...

Crash When Substance Material Is Applied to a Mesh In HLOD System

UE - World Creation - Worldbuilding Tools - HLOD - Sep 3, 2018

Crash when Substance material is applied to a mesh included in the HLOD system. Working as expected in 4.19 CL# 4033788. Unable to test issue in 4.21 CL# 4339215 due to plugin dependency. Found in ...

Unimplemented Simplygon function causes empty mesh LODs and crashes

Tools - Aug 31, 2018

When we do the refactor for MeshDescription we miss the staticmesh reduction project settings option and change only the quadric reduction. There are two possible fixes for this issue: 1. Implemen ...

Assert when having too many VR devices

UE - Platform - XR - Aug 31, 2018

Internal team is encountering a crash when adding too many VR devices. Email thread titled "Re: Crash Logs" The bug is an internal limit of devices the code supports, which is 8. If a controller o ...

Project cannot build in VS 2017 15.8+ if it uses std::make_shared with an over-aligned type

UE - Foundation - Core - Aug 30, 2018

Visual Studio 2017 15.8 includes a fix to properly handle std::make_shared used with over-aligned types. However, this is a breaking fix and requires the definition of one of two macros to either ac ...

Sprites/Flipbooks only render in left eye with Instanced Stereo Rendering enabled

UE - Platform - XR - Aug 30, 2018

Paper2D sprites render only in left eye with Instanced Stereo enabled. Also confirmed in Main CL 4329255 ...