Scene Depth Buffer corruption with VR on AMD GPUs

UE - Platform - XR - Sep 12, 2018

Depth buffer corruption/artifacts when using VR with certain AMD GPUs Tested with Oculus DK2, User reports with Oculus Rift ...

FBX material IDs from 3DS Max are reordered in automatic LOD generation

Tools - Sep 12, 2018

This appears to be a UE4 bug in the way it handles the importing of FBX Material IDs from 3DS Max exports.Max uses set Mat IDs to organize multiple materials on a single object.UE4 correctly handles t ...

Blueprint Structure Tooltip Edits Get Discarded

UE - Gameplay - Sep 12, 2018

Blueprint Structure tooltip edits get discarded. Current workaround is to make a secondary change that is not needed along with the desired change, Then edit it again to remove the secondary change. ...

Debug Helpers no longer drawn indefinitely if life time is set to 0 or less

UE - Graphics Features - Sep 10, 2018

Setting the lifetime for one of the visual debug helpers (a sphere was used in the repro, but the results should be similar for any of the debug helpers) to a value of 0 or less should make the debu ...

Disallow assigning external textures to Slate widgets

UE - Editor - UI Systems - Slate - Sep 7, 2018

External textures cannot be directly assigned as a brush texture; you need to assign a material that samples from an external texture instead since it generates special shader code to access it. ...

ARKit Crash with Session Type: Image

UE - Platform - XR - Sep 6, 2018

AR app crashes when starting AR session if session type is set to "Image". Also confirmed in Main CL 4346626 ...

Crash When Trying to Set Default Values to a Structure That Includes a Transform Variable

UE - Gameplay - Sep 6, 2018

The Editor will crash when trying to set default values to a structure that includes a transform variable. Found in 4.19 C# 4033788, 4.20 CL# 4302132. 4.21 CL# 4347190 ...

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 ...