Crash if the number of spline points is less the one spline point currently selected

Tools - Feb 26, 2020

Spline components with "input spline points to construction script" enabled causes crash when selecting a spline point and reducing the total number of spline points below the selected spline. Te ...

GPU-ARM Mali 400 series phones will render an Opaque Unlit Material as black

UE - Platform - Mobile - Feb 12, 2016

ARM Mali 400 Series GPUs are rendering Opaque Unlit Materials as Black instead of the designated color. This is a *regression* from 4.10.2.Devices where Issue OccursDevice NameBrandBug Description ...

Thumbnails get Duplicated with Large Number of Static Meshes in Foliage Paint Mode

Tools - Dec 6, 2016

When there are a large number of static meshes within the Foliage paint mode, some of the mesh thumbnails are duplicated and do not accurately reflect the correct static mesh to paint as foliage. T ...

Console Command `Stat SceneRendering` is showing incorrect number of Lights in scene

UE - Graphics Features - Jan 8, 2016

When using the Console Command for Stat SceneRendering the Counter section for "Lights in scene" is not accurately listing the number of lights. In a 4.10 project an empty new level is showing 16 ...

Strange Behavior for LayeredBlendPerBone when Blend Pose 0 and 1 are in the same hierarchy

OLD - Anim - May 25, 2017

With Layered Blend Per Bone, if the bone for Blend Pose 1 is in the hierarchy below the bone for Blend Pose 0, then the Blend Weights have some odd behavior. Blend Pose 0 = root Blend Pose 1 = spin ...

Converting Project from 4.11 to 4.12 and Above Changes Relative Scale of Sockets to 1

UE - Gameplay - Sep 21, 2016

When converting a project from 4.10/4.11 to 4.12(or later) the relative scale of the sockets on skeletal meshes will be changed to 1,1,1 regardless of the previous settings. ...

"Skip Assigning Gamepad to Player 1" Setting causes Force Feedback events to be incorrectly routed

UE - Gameplay - Input - Mar 13, 2018

The engine still uses the default index for calling force feedback events, despite them being assigned from player 1 on out. Which is why event on player 1 goes to player 0, event on player 2 goes t ...

UV Import layout error increases with movement of UVs away from 0-1 Space

Tools - May 27, 2015

When a user sets up an unwrap using a space outside the original 0 to 1 space the unwrap will increasingly show errors of positioning. For Example, in the following images the lower left vertex of ...

Cannot Import Sound File with Duration Less Than 1 Second

UE - Audio - May 29, 2015

Unable to import a sound file shorter than 1 second in length. The two sound files attached are the same sound, but one has been extended to at least 1 second long and successfully imports. ...

Event Dispatcher implementation called several times (number of bound refs increases every compile)

UE - Gameplay - Jun 26, 2018

The number of calls to the Event Dispatcher increase each time the blueprint actor containing the reference is compiled. This issue was not present in 4.18.3 (CL-3832480) but is in 4.19.2 (CL-403378 ...