User Defined Struct causing crash due to accessing freed memory when using Stompmalloc

Gameplay - Feb 14, 2019

A licensee has reported that Custom Structs can cause a crash when using StompMalloc under certain situations. Regression?: No This occurs in 4.20 ...

Volumetric Lightmaps do not work with Landscape texture mapping

Rendering - Feb 13, 2019

It appears that the Lightmass Volumetric Lightmap does not work with Landscape textures. When it samples the Landscape with some textured material, the resulting lighting build data does not match t ...

Datasmith re-import crash - UE4Editor-UnrealEd!UMaterialInstanceConstantFactoryNew::FactoryCreateNew

Datasmith - 3dsMax - Feb 13, 2019

From user:I'm getting repeatable crashes on re-imports after I've re-worked the models a bit in Max. The workaround now is to just delete everything from Unreal and do a fresh import, but as my o ...

WorldSettings Blueprint crashes editor when saved/compiled

Gameplay - Blueprint - Feb 12, 2019

Making a Blueprint instance of the AWorldSettings class, then saving/compiling instance Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 4958363) ...

Crash in Debug Camera (patch provided in comment !)

Gameplay - Feb 12, 2019

Hello, A licensee has reported us a crash in DebugCameraController / DebugCameraHUD.  It is due to a missing check in ADebugCameraHUD::PostRender() of SelectedActor set in ADebugCameraController ...

Loading Visual Studio toast does not close

Core - Feb 11, 2019

The Loading Visual Studio toast never closes after opening Visual Studio by double clicking on a C++ Class or Blueprint node. I do not see this issue when I select File > Open Visual Studio 2017. ...

Motion Controller meshes do not track with Motion Controller position within VRMode

Virtual Reality - Feb 8, 2019

This is a regression from release 4.21.2 Motion controller meshes are present in the level, they just aren't tracking alongside the motion controls. Motion controls still function as intended othe ...

Send Console commands on tvOS

Platform - Mobile - Feb 8, 2019

Data Asset Deserialization crash after upgrading 4.19.2 to 421.1

Core - Feb 7, 2019

The User has provided an extensive log of their code base setup, and the process leading up to when the Assert occurs. "Our game mode & player state FSM are setup in a data driven manor using UDa ...