Package game fails after creating plugin through editor

Tools - Sep 3, 2015

After creating a plugin in using the New Plugin button in the editor the project will fail to compile. ...

Attempting to Open a Widget Blueprint With Animation and Timeline Panels Hidden Causes the Editor to Crash

UE - Editor - UI Systems - Nov 11, 2015

When you attempt to open a widget blueprint when you have hidden the animation and timeline panels, the editor will crash. There is a workaround: Window->Reset Layout will allow you to open the blu ...

Cannot Add Collision to an EQS Testing Pawn

UE - AI - Jan 6, 2016

Attempting to add collision to an EQSTestingPawn class is not possible, as the inherited capsule component seems to override any new collision. Simulating with the inherited capsule will cause the P ...

Cloth environment collisions with APEX clothing is not thread safe.

UE - Simulation - Physics - Character - Jan 17, 2017

This looks like a thread safety bug that's been in the clothing system for a very long time. Essentially a skeletal mesh component does a transform update and attempts to update the collisions of a ...

iOS movie become laggy and crashes when played in iPhone 6/6s.

UE - Platform - Mobile - Feb 24, 2017

Movie play in iOS is laggy and crashes in some movie. This issue seems to be happening when the movie is played in umg widget. Tested in 4.14.3 4.15 Dev_Mobile Latest as of 2/24 Original UDN post ...

User project crashes after changing struct

UE - Gameplay - Blueprint - Aug 10, 2017

Extreme hitching when using profile command (stat startfile) + other stat commands

UE - Foundation - Core - Apr 19, 2018

Running the "stat startfile" command in a 4.19 project causes constant editor hitching. Running the same command in a 4.18 project does not produce any hitching by comparison. ...

Search results appear incorrect when using the "OR" operator in the content browser with number at the beginning

UE - Editor - Content Pipeline - Content Browser - May 1, 2018

When using the OR operator in the search bar of the content browser it appears to return wrong search results when the asset's names begin with a number. ...

Float value of AIDataProvider_QueryParams is cast faild

UE - AI - Oct 9, 2018

IntValue and BoolValue is always indefinite value in UAIDataProvider_QueryParams::BindData(). Attach the result of Watch in VS. ...

Cannot (Easily) Change the Case of Folder Names in the World Outliner

Tools - Jul 11, 2016

In the World Outliner, without the following workaround, you cannot simply change the case of a folder name from upper to lower case or vice versa. EXAMPLE: map -> Map = map WORKAROUND: Change "M ...