Debug lines do not properly draw on first hit of projectile when CCD is used and projectile is shot at a thin object or BSP.

UE - Simulation - Physics - Jan 2, 2015

When firing a projectile that has CCD activated, the first hit on an object that is either a bsp or very thin wilil draw a debug line through the object instead of drawing away from the impact point ...

Adding a new widget class to a 3D widget causes a crash

UE - Editor - UI Systems - Jan 2, 2015

When clicking the button to add a new class to a widget component via the [+] button the engine will crash ...

Possible incorrect logical operator used in if statement in OnlineSessionInterfaceNull.cpp

UE - Networking - Dec 31, 2014

A user pointed out a possible mistaken use of the && operator instead of the || operator in an if statement in source code. In the FOnlineSessionNull::GetResolvedConnectString() function in OnlineSe ...

SIGSEGV: invalid attempt to access memory at address 0x0

UE - Platform - Apple - Dec 31, 2014

Multiple crashes with the crash report message: SIGSEGV: invalid attempt to access memory at address 0x0 Crash Report: [Link Removed] <unknown module>! FSlateApplication::ProcessMouseMoveEvent(FPo ...

Incorrect tooltip comment for the ConeHalfAngle property in BTDecorator_ConeCheck.h

UE - AI - Dec 31, 2014

The comment (and resulting tooltip in the Editor) for the ConeHalfAngle property in BTDecorator_ConeCheck.h does not appear to be correct. The property seems to be controlling the angular size of th ...

Changing project settings in the Editor can result in duplicate entries in the project's .ini files.

Tools - Dec 30, 2014

Changing the packaging settings for a project in the Editor results in double entries in the .ini file for the project. This seems to have worked fine in 4.5.1 (CL 2336109). Found broken in 4.6.1 ( ...

Changing a Media Player asset from Stream Mode: FromURL to From Memory crashes the editor

Tools - Dec 30, 2014

Changing a Media Player asset from Stream Mode: FromURL to From Memory crashes the editor. In 4.8, the editor crashes immediately upon changing that value, with no crash report. In 4.6 and 4.7 Pre ...

A Pass-by-Reference function input cannot accept a reference to Self

UE - Gameplay - Blueprint - Dec 30, 2014

A Pass-by-Reference function input cannot accept a reference to Self. Workaround: Cast from Self to the desired class and use that for the function's input. ...

Slight delay when switching between UMG buttons on Mac

UE - Editor - UI Systems - Dec 30, 2014

There is a slight delay when clicking between two different UMG buttons on Mac. Tested on OSX 10.10.1. There also appears to be a flicker on the Menu Bar. ...

Delete Unused Variables deletes variables used in Child Blueprints

UE - Gameplay - Blueprint - Dec 30, 2014

[NickW] Should perform a search in children, at least warn if this will break children. — Delete Unused Variables deletes variables used in Child Blueprints. Note: Not only child blueprints. If ...