Setting the root component in a code class constructor does not actually set that component as the root component of a Blueprint created from that class.

UE - Gameplay - Blueprint - Dec 16, 2014

The root component of a Blueprint is determined by the order in which the components are defined in the constructor of a class (the component defined first becomes the root component). Trying to set ...

Editing multiple Math Expressions will crash the editor

UE - Gameplay - Blueprint - Dec 30, 2014

Editing multiple Math Expressions will crash the editor. ...

Editor slows exponentially when selecting an instanced static mesh in viewport that has a large number of instances

Tools - Jan 19, 2015

Editor slows down exponentially when spawning in a large quantity of instanced meshes. ...

Lighting Build fails with World Settings Error

UE - Graphics Features - Jan 16, 2015

Lighting Builds seemingly successfully but produces a Map Check Error for World Settings. There are several things that can be done to "eliminate the issue" and I have separated them into different ...

A camera set to Orthographic projection mode with a negative Ortho Width will crash the editor on PIE

UE - Graphics Features - Jan 22, 2015

A camera set to Orthographic projection mode with a negative Ortho Width will crash the editor on PIE. Reproduced in Main (CL-2412886) Crash Report: [Link Removed] Call Stack:<unknown module>! UE ...

DoesSocketExist always returns false for Sprite Sockets (flipbooks and sprite components)

UE - Gameplay - Paper2D - Jan 15, 2015

DoesSocketExist always returns false for Sprites in a Flipbook, whether there is a socket on any/all of the Sprites or not. Note: GetSocketLocation seems to work fine, indicating that it is reading ...

AI characters float above the ground only when in a packaged project

UE - Gameplay - Nov 4, 2014

The users AI characters will work correctly while in PIE & Standalone Mode but when in a packaged project they will float above the ground. This was working correctly for the user in 4.4.3 but the ...

Setting character animation in parent BP and mesh in child BP does not play the animation in a packaged game

UE - Gameplay - Jan 21, 2015

When a child BP is used to with a skeletal mesh to play an animation set in the parent, the animation will play in editor and in standalone but will not play in a packaged game. ...

Rotating terrain with heightmap causes black splotches on terrain

UE - LD & Modeling - Terrain - Landscape - Jan 26, 2015

Rotating a landscape with a heightmap causes lightmass to break, rendering black splotches across terrain after building lighting. ...

Actor references in Level Blueprint show an incorrect display name after converting the project from 4.6.1 to 4.7 Preview or 4.8

UE - Gameplay - Blueprint - Jan 26, 2015

Actor references in Level Blueprint show an incorrect display name on their nodes after converting the project from 4.6.1 to 4.7 Preview or 4.8. Reproduced in 4.7.1 Preview 4 and in Main (Promotabl ...