Plane Constraint Normal is not Properly Reset

UE - Simulation - Physics - Jan 26, 2016

In the Character Movement Component, setting the Plane Constraint Normal to a value other than default, and then attempting to change the value back to the default does not revert to the default val ...

The Select node will accept both a Parent Class and a Child Class as inputs if the Parent is added first

UE - Gameplay - Blueprint - Sep 2, 2015

The Select node will accept both a Parent Class and a Child Class as inputs if the Parent is added first. The node will compile if the Index is set to anything other than Wildcard. Note that the no ...

Destructible cannot change collision profile at runtime via Blueprints

UE - Simulation - Physics - Destruction - Jan 6, 2015

DESCRIPTION: When attempting to change the collision profile of a destructible via Blueprints it will not set appropriately. The collision profile set via the details panel for the individual object ...

Unexpected behavior from moving multiple widget components with render transform

UE - Editor - UI Systems - May 10, 2017

Unexpected behavior occurs from moving multiple widget components with render transform applied to them. The individual components seem to change relative position or rotation when being clicked and ...

Light function does not work with volumetric fog when not compatible with light atlas

UE - Graphics Features - Mar 28, 2025

Light functions do not work as intended with volumetric fog when using clamped mask textures which are not compatible with the light function atlas. In light functions materials, when using any UV ...

Distance calculation using World Position are rendering incorrectly when packaged or launched for iOS and Android

UE - Platform - Mobile - Jan 15, 2016

When using a calculating the distance between the Absolute World Position (Including Material offsets) and a set Vector value, the correct value appears rendering to a texture's UV in PC Mobile Prev ...

Crash on Mac when adding Convex Collision to a mesh converted from a brush

UE - Platform - Apple - Jun 6, 2017

This is one of the top Mac crashes occurring in 4.16. Caused by adding Auto Convex Collision to a mesh converted from a brush. Does not occur on Windows. User DescriptionsI was trying to add a conv ...

Physics replicates incorrectly on the Client-Side on sloped surfaces

UE - Simulation - Physics - Jul 30, 2019

Replicated objects don't behave correctly on the client-side on slopes when not sleeping. By placing two cubes on one another and slightly rotating the bottom one to create a very gentle slope, the ...

Moving all the related assets to another folder at once leads to reference lost in the contents browser.

UE - Editor - Content Pipeline - Content Browser - Aug 23, 2017

Moving all the related assets into another folder leads to reference lost. This can be tested out using ShooterGame project. Also you can find materials in the skeletal mesh lost its texture. This ...

Compatible skeletons not visible when "Show Only Compatible Skeletons" is Selected in Retarget Window

OLD - Anim - Aug 19, 2015

When you right click on a Skeleton and select "Retarget to another Skeleton," in the subsequent "Select Skeleton" pop up Window, compatible skeletons are not visible when "Show Only Compatible Skele ...