Using HideCategories specifier does not hide custom categories

Tools - Aug 6, 2015

If a Component/ variable is given a custom category in code, using the HideCategories specifer inside the UCLASS macro does not hide the category. ...

Mouse Position doesn't properly update on tick when framerate is low in standalone game

UE - Editor - UI Systems - Slate - Dec 11, 2015

If a game is run in the standalone editor and the FPS drops to ~20-30 FPS, pressing an event such as LMB and returning the mouse position on tick will cause the tick to jump inconsistently. Note: ...

Notifies are retriggered on loop of an animation in Matinee/Sequencer

UE - Anim - Sequencer - May 31, 2016

Notifies are retriggered on loop of an animation in Matinee/Sequencer. This occurs during Sequencer Editor playback and when playing in game. ...

Get World Delta Seconds Not Pausing When Hitting a Breakpoint

UE - Gameplay - Blueprint - Feb 11, 2016

When debugging a blueprint using breakpoints, if you click the Resume button while you have Get World Delta Seconds running on tick, it will always return a maximum clamped value of .4 seconds (or l ...

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 ...

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 ...