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 ...

Changing the Resolution scale in Engine scalability can cause actors to be offset when ejected from the player controller

UE - Graphics Features - Nov 30, 2015

If the user turns down the Resolution scale, plays in editor, and then ejects from the currently controlled pawn The actors in the scene will be hard to click on because they appear to be offset fro ...

Animation Starter Pack IK Handles Not Moving

UE - Anim - Rigging - Oct 12, 2015

In the Animation Starter Pack for UE 4.9, The IK handles for the Mannequin's Skeleton do not move with the the rest of the joints in any AnimSequence. *See attached image. ...

Changing WITH_SUPSTEPPING prevents 4.10 from compiling

UE - Simulation - Physics - Nov 24, 2015

In the file EngineDefines.h, changing 37 to read "#define WITH_SUBSTEPPING 0" will cause the solution to fail the build process. ...

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 ...

Packaging Project with Nativize Blueprint Assets Prevents Overlap Events from Firing

UE - Gameplay - Blueprint Runtime - Mar 31, 2016

Currently, I have been unable to reproduce this issue outside of the user's project that is provided in the repro steps. Packaging a game that has the experimental feature Nativize Blueprint Assets ...

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. ...

Array OnRep Notification Not Running on Server

UE - Networking - Nov 30, 2016

Array variables marked as RepNotify are not calling OnRep on the server when they are not directly set using a Set 'VariableName' node. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 317229 ...

Engine Hangs after Exiting Standalone Mode

UE - Graphics Features - Dec 1, 2016

Users are reporting hangs after exiting Standalone or other various windows launched through the editor. The resolution has already been found, but I am reporting for transparency. Note In order t ...