An Actor Reference will reset to a None when referencing a ChildActor

UE - Gameplay - Feb 11, 2016

A blueprint with an Actor Reference will reset to a None value on compile or stopping PIE User Description: We have come across a bug with the editor regarding setting direct references to child a ...

Setting Auto Possess AI to "Spawned" or "Placed in World or Spawned" will play falling animation

UE - Gameplay - Player Movement - Sep 3, 2015

If the Auto Possess AI is set to Spawned or Placed in World or Spawned then the falling animation will play in the blueprint viewport. ...

Blending Animations between Third Person Project and Animation Starter Pack results in "dipping below floor level"

Docs - Samples - Aug 5, 2015

A number of users have reported that blending animations between Third Person Project and Animation Starter Pack results in a "dipping below floor level" between the two animations. The cause of th ...

Root Motion Not Working with Multiple Slots

OLD - Anim - Jul 27, 2015

When a montage containing two slots each containing animations with root motion is played in editor: When the first slot selected, root motion functions properly with the animation. When the sec ...

Editor crash when spawning/cloning a static mesh actor

UE - Gameplay - Sep 10, 2015

Setting a FActorSpawnParameters' variable's Template to "this" and then spawning an instance of the static mesh actor using the parameter causes the editor to crash. ...

Cannot Dynamically Spawn Actor Containing Overlapping Child Actor Components

UE - Gameplay - Mar 8, 2016

Blueprints containing child actor components that are overlapping in the blueprint's viewport cannot be used as the default pawn, as they are not spawned in. Using the Spawn Actor From Class node wo ...

Crash when opening blueprint with collapsed nodes with structure output, split pin

UE - Gameplay - Blueprint - Jan 25, 2017

If you have a collapsed graph with user defined structure as output, and if the output pin is split, the BP always crashes the editor after you reopening the project. This can also happen in level b ...

Foliage Positions become Offset when Moving and Undoing Painted Surfaces

UE - World Creation - Worldbuilding Tools - Foliage - Feb 10, 2017

A series of moving and undoing a surface which has foliage painted on it will offset the location of the foliage so that it no longer remains in the correct relative location. ...

Engine Crash When Enabling Distance Field Global Illumination and Opening TM-LightingFeatures

UE - Graphics Features - Jan 11, 2017

I was able to open the level once and after a few seconds of being opened the editor crashed while compiling shaders and generating mesh distance fields. Since then I have not been able to open th ...

Landscape Grass Tool loss of Performance

UE - World Creation - Worldbuilding Tools - Foliage - Mar 20, 2017

A number of users are reporting a large drop in performance when working with the landscape grass tool compared to other foliage application methods, as well as a drop in performance since previous ...