UMG Widget color and Text color has different output at UE4 editor to Mobile preview and Mobile device.

UE - Editor - UI Systems - Jul 3, 2015

UMG Widget color and Text color has different color output at UE4 editor to Mobile preview and Mobile device. https://udn.unrealengine.com/questions/251945/umg-viewport-device%E1%84%8B%E1%85%A6%E1% ...

Crash when rendering cinematic in a Separate Process without "-NoLoadingScreen" cmd argument

UE - Anim - Sequencer - Jul 5, 2016

Crash when rendering cinematic in a Separate Process without "-NoLoadingScreen" cmd argument. Occurs in 4.12 and 4.13 in both Matinee and Sequencer Error message: Assertion failed: SizeX > 0 && S ...

NavMesh "Enable Drawing" option is not saved

UE - AI - Mar 7, 2015

USER DESCRIPTION: Every time I check "Enable Drawing" in project settings, save all, close the editor then open it again -> Enable Drawing is unchecked. Why? Is there some other place when this opti ...

ATan is not available in a Math Expression

UE - Gameplay - Blueprint - Mar 10, 2015

Using a Math Expression node, atan will generate an error as an unknown expression. Reproduced in Main Promotable-CL-2471062 [Image Removed] ...

NavMesh generates 90 degrees rotated for custom collisions

UE - AI - Apr 16, 2015

The NavMesh creates breaks at the wrong rotation if the mesh is using collision created from outside of UE4. This is obvious in a lot of the market content with special collision created in maya/3d ...

Packaged Build Crashing When Activating Particle System with Instanced Parameters

UE - Graphics Features - Jun 17, 2016

This crash only seems to be occurring in a packaged game, and it has not been able to be reproduced in a clean project following the steps that the user provided. ...

UnrealFrontend Plus button has an odd size

UE - Platform - Console - UnrealFrontend - Jul 20, 2016

The Plus button on the right side of the Custom Launch Profiles row in UnrealFrontend is stretched vertically. ...

Changing character collision at runtime results in erratic physics behavior

UE - Simulation - Physics - Sep 25, 2015

Using SetCollisionObjectType at runtime to change the collision channel of a character results in different results than expected. Project: [Link Removed] ...

Some textures don't work with particle cutouts

UE - Graphics Features - Jun 2, 2016

Some textures don't work with particle cutouts [Image Removed] ...