Intermittent crash in CacheOptimizeIndexBuffer on Editor startup on Linux

UE - Platform - Linux - Nov 16, 2015

Building 4.10 from the GitHub release branch on Linux fails to open after install and instead crashes User Suggested Fix: Switching triangle order optimization off with r.TriangleOrderOptimization= ...

Hot Reload crash on PIE with custom AIController and Perception Component

UE - AI - Sep 29, 2015

If a pawn in the level is using a custom AI Controller that sets the AIPerceptionComponent in code, the editor will crash on PIE after a hot reload. CrashReporter: [Link Removed] ...

CMakefile does not generate includes and definitions on Linux

UE - Platform - Linux - Oct 9, 2015

Generating CMakeLists.txt does not properly create includes and definitions causing project files genereated by Cmake to not have these includes and the indexer to not be able to resolve most of the ...

Import window on Linux does not list all folder options

UE - Platform - Linux - Oct 19, 2015

When the Import window is opened on Linux, the window does not show all folders such as multiple drives, common folders, etc. This makes finding files to import more difficult since search options ...

Can't Package game with FJsonObjectConverter

It is not possible to package a game when using the FJsonObjectConverter. This Converter is part of "JsonUtilities", and whenever I'm including this to my Build.cs as follows, the packaging fails: ...

Compressed cooked packages feature is not functioning correctly.

Tools - Oct 15, 2015

'Create Compressed Cooked Packages' option within Project Settings > Packaging menu does not create a smaller package size on Mac and it does not change the size on Windows packages. ...

FLightMap2D::Serialize() contains a possible index out of range error.

UE - Graphics Features - Dec 30, 2014

A user pointed out a potential to have an index out of range error in the source code. There are also a few magic numbers scattered around in this function. ...

Screenshot console command does not work properly on mobile devices

UE - Platform - Mobile - Feb 3, 2016

Screenshots taken by the console command Shot or HighResShot are not being saved on Android or iOS devices. ...

Setting Automatically checkout on Asset Modification in the editor does not check out files

Tools - Nov 20, 2015

When the checkbox for Automatically checkout on Asset Modification is set to true in the editor, updating files (blueprints, materials, etc) does not check them out automatically. REGRESSION Worki ...

The ReceivedSpectatorClass function in APlayerController may take an incorrect parameter

UE - Gameplay - Jul 7, 2015

The ReceivedSpectatorClass function in APlayerController may have an incorrect parameter. The parameter it takes in is TSubclassOf<AGameMode> SpectatorClass, but this may be intended to be TSubclass ...