Networked Root Motion Sources can experience desynchronisation that is not present in animation root motion under forced adjustment

UE - Gameplay - Player Movement - Feb 13, 2024

In a networked environment with high packet loss (or high forced adjustment factor), motion applied using Root Motion Sources can desynchronise under conditions that animation root motion does not. ...

Setting Pressed Sound for Widget Style Doesn't Set the Value

UE - Editor - UI Systems - Nov 6, 2015

Attempting to set the Pressed Sound for Widget Style dynamically never actually sets the sound. When you click the button, you get no pressed sound. However, when setting the Pressed Sound through t ...

Compiling specific blueprints in user projects cause editor to freeze and become unresponsive

UE - Gameplay - Blueprint - Apr 28, 2016

Several users have reported that their projects cannot compile specific blueprints. In one a character blueprint and another a controller. In both instances, the editor becomes completely unresponsi ...

Fail to compile with Added AIController class

UE - Foundation - Core - Jan 14, 2015

User fails to compile code template after adding AIController code to project. Regression: Not a regression happens in 4.6.1 CL-2386410 Setting up Mono Building MyProjectEditor... Compiling game m ...

Cannot Increment a Blackboard Key Value

UE - Gameplay - Blueprint - Feb 4, 2016

Getting a blackboard value as int and then attempting to increment it does not actually increment the value. Upon attempting to increment a value that started at 0, the editor continued to print out ...

Fbx importer does not import animation exported with dense data property

Tools - May 4, 2017

The attached fbx was exported with dense data, i.e. there are 10 subframe keys set per frame vs the usual single key per frame. We do this to eliminate subframe "jitter" that occurs sometimes with ...

Crash due to D3D device being lost. (Error: 0x887A0006 - 'HUNG')

UE - Graphics Features - Feb 22, 2017

This JIRA has been made to consolidate all "D3D device being lost. (Error: 0x887A0006 - 'HUNG')" crashes into one. Previous Jira tickets include:[Link Removed][Link Removed][Link Removed][Link Remo ...

Custom iOS icons don't appear on device for Windows BP projects (Binary Build)

UE - Platform - Mobile - May 4, 2018

iOS icons have stopped working for Windows BP projects again; this does not occur on Mac. It also does not occur when using a source build from p4 (only on a binary build from the launcher). Note t ...

SceneCapture2D Components when referenced on screen by UI widget will cause massive screen flickering in Standalone, Launched or Packaged Game

UE - Graphics Features - Feb 10, 2016

When a SceneCapture2D actor is added as a Component to a Blueprint actor and the Render Target is assigned to a UI component in the level, the screen flickers at a rapid pace. The effect is slightl ...

Camera Shake Oscillation Duration no longer accepts -1 as indefinite

UE - Gameplay - Jul 30, 2015

The Camera Shake Class no longer allows for indefinite shaking via setting a negative value in the Oscillation duration, per the tooltip instructions. This happens when using either the Play World ...