Empty Mesh Sections with MergeActors Tool

Tools - HLOD - Sep 27, 2019

Map Check will output the following error, which makes no sense: SM_FourCubes_1 - 1 element(s) with zero triangles in static mesh 'SM_FourCubes' ...

Stereo layers with depth render translucency as black on Oculus Quest

Virtual Reality - Sep 27, 2019

416417-stereolayerproject.zip[Image Removed] ...

LevelSequenceActorSpawner::GetLevelStreaming() fails to compare sub level names when running in Pie

Sequencer - Sep 26, 2019

The problem is in the function with signature "ULevelStreaming* GetLevelStreaming(FString SafeLevelName, UWorld& World)" within LevelSequenceActorSpawner.cpp at line 30. The problem is with the Safe ...

Child Actor Component Actor Duplicates and Persists After Play

Gameplay - Sep 26, 2019

When an actor spawns another actor using AddChildActorComponent that comes alphabetically before it based on blueprint name it will spawn an extra actor that will persist when the scene is stopped d ...

Race condition in full builds of UE4 engine source

DevTools - UnrealBuildTool - Sep 26, 2019

This is a race condition caused by how "Clean.bat", a batch file used during rebuilds, tries to manually rebuild the UnrealBuildTool project when it runs. This causes a spam of UnrealBuildTool build ...

HDRI Backdrop Actor not working on mobile

Platform - Mobile - Sep 26, 2019

The new HDRI Backdrop actor does not appear to be functioning on mobile. ...

Investigate deprecating byte-swap during save

Core - Sep 26, 2019

All major UE target platforms are little-endian. Saving packages with byte-swapping seems to have been broken for more than six years, when CL# 1495479 changed `FArchive::ByteOrderSerialize()` so th ...

Enable SkinCache stretches the Cloth Sim

Physics - Clothing - Sep 26, 2019

[Image Removed] ...

EQS Debug Draw Shows Old Query Information

Gameplay - AI - Sep 26, 2019

Sample project: [Link Removed] Debug draw update correctly: [Link Removed] Debug draw update incorrect: [Link Removed] ...

Image appears blank when using Export Render Target on Android

Platform - Mobile - Sep 25, 2019

When using the node Export Render Target it appears that the image produces does not display as expected and appears blank when used on Android ...