Shortcut for Swing1Motion (2, and 3) do not change physics asset state dirty.

OLD - Anim - Sep 8, 2017

Shortcut for Toggle Angular Limits 1, 2 and 3 for Physics assets do not change phys asset state as dirty. ...

Sphere Mask ArgInvHardness missing multiplication

UE - Rendering Architecture - Materials - Jun 27, 2025

Hi Epic, In MaterialExpressions.cpp UMaterialExpressionSphereMask::Compile(), hardness is not calculated the same way in both <if> conditions. One is missing a multiplication by 0.01f. Specificall ...

Adding assets to a project on a drive that is full still creates the file at the desired location instead of in a temporary location and provides no information as to why the asset is failing to load, corrupting the asset

Tools - Oct 31, 2016

Adding assets to a project on a drive that is full still creates the file at the desired location instead of in a temporary location and provides no information as to why the asset is failing to loa ...

Disabling 'Use Landscape Lightmap' option Skewing Procedural Foliage Instances

UE - LD & Modeling - Terrain - Landscape - Oct 24, 2016

Disabling the 'Use Landscape Lightmap' when using procedural foliage, will skew the placed instanced meshes. Regression? Yes, this issue did not occur in the 4.13.1 release. ...

Fbx importer can import valid under 30Hz anim at 30Hz

Tools - Jul 17, 2017

The samplerate of a track was compute with the following formula Equation 1: number of Key / animation Time This formula work only if we have animation keys that are time equidistant. example of ...

Scalar Parameter versus Constant placed in Alpha of LERP produces inconsistent results in Blendable

UE - Graphics Features - Jun 8, 2015

When placing a Scalar Parameter into the Alpha position of a LERP you will not get the same results as placing a Constant Value when used in a Post Process Material. Constant Value of 0: [Image Rem ...

Kinematic in Physics Asset Overrides Bone Scale of Skeletal Meshes

UE - Simulation - Physics - Oct 7, 2020

In a character's Physics Asset, a bone that is set to Kinematic and its children will have a scale of 1 overriding the Skeletal Mesh's Scale Transform settings. When the root of the body is changed ...

Interaction between sublevels and LevelSequences can break actors attachments hierarchy of the sublevel.

Having a LevelSequence opened and unhiding a sublevel can break the attachment hierarchy of the actors that are inside the sublevel. This also affects to the sublevel asset itself. ...

The Ease function's Blend Exp reverts to its default value after closing/reopening the editor

UE - Gameplay - Blueprint - Jan 20, 2015

The Ease function's Blend Exp reverts to its default value after closing/reopening the editor. Reproduced in 4.6.1 binary and in Main (CL-2408355). ...

[MAC] Editor keyboard bindings do not allow overriding already bound shortcuts

UE - Platform - Apple - Sep 9, 2015

When entering "ALT+B," to rebind keys to a function, red warning flashes for 1 frame, does not allow function to be rebound to this key combination *See attached image. ...