NotBoolean node is broken in specific projects for State Machine Transitions

OLD - Anim - Oct 14, 2015

In the attached project, you'll find the NewChar_AnimBP. In the state machine, there is a "NotBoolean" node in the JumpingToFallingLoop transition that appears to be broken. At first, the NotBoo ...

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 ...

Attached actor rotates incorrectly if the parent has negative scaling on one axis and more than 1.0 scaling on another

UE - Gameplay - Dec 27, 2016

A child actor rotates incorrectly if the parent has negative scaling on one axis and more than 1.0 scaling on another. The child/parent relationship was created through the World Outliner. Licensee ...

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 ...

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 ...