Naming an Event Dispatcher the Same as an Overridable Function Corrupts the Event Dispatcher

UE - Gameplay - Blueprint - Oct 21, 2015

Creating an event dispatcher in a widget blueprint with the name OnDrop, which is already an existing overridable function, causes the event dispatcher to become corrupted and prevents it from being ...

Any Key input binding does not respond to any key presses

UE - Gameplay - Input - Oct 15, 2015

The input binding "Any Key", which was added in 4.9, does not respond to any key presses. Regression?: No: This feature did not exist before 4.9 ...

Cannot Add Elements to AIPerceptionStimuliSource's Register as Source on an Instance in the Level

UE - AI - Jun 7, 2016

When attempting to add an element to the Register as Source for Senses on an instance of a blueprint in the level, the + button has no effect. Clicking the button does not add an element. This work ...

Sublevel moves away when undoing the level visibility change

Tools - Nov 21, 2016

When you have a sub level with some level transform, changing its visibility then doing undo makes the sub level moved away as if the level transform applied twice. I could repro the issue in 4.13. ...

Actor Not Ticking on First Streaming Level Load When Using Level Streaming Volume

UE - Gameplay - Apr 11, 2017

Actor's do not appear to be ticking when a level is first loaded when using a Level Streaming Volume. The Tick event will fire on the second and subsequent attempts. Edit: After further testing, th ...

Sweep result from AddActorWorldOffset is inconsistent following direction when the actor is initially overlapped with other object.

UE - Simulation - Physics - May 19, 2017

Sweep result is not consistent when there is initial overlap but the x sign(+/-) is not same. I believe this issue is related to [Link Removed] So this leads to inconsistent behavior in the TwinSti ...

Crash occurs with gameplay tag map variable compiles with default value changed

UE - Gameplay - Blueprint - Jun 28, 2017

there is a crash that occurs with gameplay tag map variable compiles with default value changed. This issue occurs no matter what the secondary value of the map is. I was unable to test this issue i ...

Copying values of an array created through C++ does not copy all values

Tools - Aug 24, 2017

Copying values of an array created through C++ does not copy all values, only the first value is copied over. This is different than an array that is created in blueprints when those are copied they ...

Mobile MSAA breaks Modulated Shadows on OpenGL ES 2

UE - Platform - Mobile - Apr 2, 2018

UPDATED DESCRIPTION When enabling Cast Modulated Shadows on a Directional Light and using Mobile MSAA on Android OpenGL ES 2, shadows from the Directional Light do not render when dynamic objects ar ...

Unable to change the 'Actor to Track' on Cine Cameras when the target Actor is in a different Sublevel

UE - Anim - Sequencer - Jul 2, 2018

You are unable to track Actors that are in different sublevels when using Cine Cameras. The 'Actor to Track' is set back to none if the target Actor isn't in the same sublevel as the Camera. This is ...