Details panel for Actor Component is blank in any Blueprint that derives from a code class using that Actor Component after the Actor Component's class name is changed

UE - Gameplay - Blueprint - Dec 20, 2018

Changing the name of an Actor Component code class in a project results in any existing Blueprints that derive from code classes that use that Actor Component to not display the Actor Component's pr ...

Unable to change Blueprint Child Variable values in Python

UE - Editor - Workflow Systems - Dec 20, 2018

Using the Python function unreal.SystemLibrary.set_bool_property_by_name() to change the default variable values of a child Blueprint do not work as intended. Tested in 4.20.3 (CL - 4369336), 4.21. ...

Collision Problems on Meshes with Collision Complexity Setting UseComplexAsSimple

UE - Simulation - Physics - Dec 20, 2018

Collision does not appear to work properly on a static mesh that is set up with UseComplexCollisionAsSimple. ...

Extra column that cannot be edited is shown in Property Matrix when editing a Data Asset

Tools - Dec 19, 2018

When using the Property Matrix to edit a Data Asset, there is an extra column shown named "Native Class" that cannot be edited. This is most likely due to the code only checking to see if a property ...

Planar Reflections Not Behaving As Expected in Splitscreen

UE - Graphics Features - Dec 19, 2018

This occurs in //UE4/Main @ CL 4670176 Not a Regression. This is similar to https://jira.it.epicgames.net/browse/UE-59149 but when adding more player characters it seems to change the planar reflec ...

Playing video in the Editor's Media Player on a Mac results in a degradation in quality with some noticeable banding present

UE - Platform - Apple - Dec 19, 2018

Playing a video on a Mac using the Editor's Media Player results in the video appearing to have had its data compressed, and with an apparent decrease in quality. In particular, there is noticeable ...

CameraPosition Node in a Material Shader does not behave correctly with Metal

UE - Platform - Mobile - Dec 19, 2018

When using a CameraPosition Node in a Material Shader, it does not behave correctly with Metal. Working as expected in 4.20 CL# 4369336 Found in 4.21 CL# 4613538 and 4.22 CL# 4666322 ...

CircleDOF Creates Artifacts When Close to a Translucent Surface With an Object Behind It

UE - Graphics Features - Dec 19, 2018

With CircleDOF enabled artifacts will occur when getting close to a translucent plane with an object behind it. This does not occur with any other DOF method or if "Render After DOF" is disabled in ...

BP function node inputs can unintentionally add or clobber metadata

UE - Gameplay - Blueprint - Dec 19, 2018

Blueprint inputs are added to nodes as metadata, with the key set to the pin name and the value set to the default for that pin. Since blueprint functions allow you to name your own input pins, this ...

APEX Plugin - Destructible Mesh creation no longer creates/assigns Mesh Material

UE - Simulation - Physics - Destruction - Dec 19, 2018

Destructible mesh material creation no longer creates/assigns DM array element with material from mesh. Workaround: Assign material manually after creating Destructible mesh Confirmed in MAIN @ CL ...