BeginOcclusionTests called twice in ProfileGPU report during VRPreview

UE - Platform - XR - Mar 23, 2017

When running in VRPreview and entering the 'ProfileGPU' command, 'BeginOcclusionTests' is listed twice. As the licensee mentioned, if a project uses heavy occlusion this could quickly become a cost ...

Behavior Tree marked as changed on open when containing Run Behavior node

UE - AI - Mar 29, 2017

When a behavior tree contains a Run Behavior node, opening the behavior tree marks the asset as "modified" and users would get asked by the editor if they want to save it even when there has been no ...

Pixel Depth not Working on Mobile when used with Custom Depth

UE - Platform - Mobile - May 4, 2017

A licensee is reporting incorrect results when using the Pixel Depth expression and Custom Depth. Custom Depth is working fine, but when combined with Pixel Depth the results are quite different fr ...

Crash Occurs Enabling new Audio Mixer with Audio Devices Disabled

UE - Audio - May 25, 2017

If a user has all their audio devices disabled, and then enables the new audio mixer for 4.16, a crash occurs when trying to launch any new or existing project. This is a regression as this crash d ...

Fill tool does not work on BSP

UE - World Creation - Worldbuilding Tools - Foliage - Mar 6, 2013

 The fill bucket tool under foliage does not work with BSP surfaces. ...

StrategyGame build failure from with XCode9

UE - Platform - Mobile - Jul 19, 2017

Did not occur when building the 3rd Person Code template from Windows to XCode 9. Also did not occur when building StrategyGame from Windows to XCode 8. This hasn't yet been tested natively on a Ma ...

There is a spelling error in the tutorial for blueprints. The word "contains" is written as "containes."

Docs - Oct 26, 2017

There is a spelling error in the tutorial for blueprints. The word "contains" is written as "containes." ...

[CrashReport] UE4Editor_MeshPaint!FBaseMeshPaintGeometryAdapter::GetVertexPosition() [basemeshpaintgeometryadapter.cpp:70]

UE - Simulation - Physics - Character - Nov 2, 2017

This is a trending crash coming out of 4.18, and may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Source Context 57 const TArray<FVec ...

Linux: SIGTERM handler can deadlock

UE - Platform - Linux - Sep 30, 2016

Handling SIGTERM can deadlock because RequestExit() can log stuff. If we happen to be in the malloc at that time of receiving the signal this is going to deadlock the process. In general, we should ...

Foliage Culling is Broken on Linux

UE - Platform - Linux - Apr 25, 2018

When viewing foliage on Linux it culls in and out as the camera comes closer to it. Also changing the way it is rendered to become grey and transparent (and changing back to normal, perhaps dependin ...