MoviePipeline: Python Editor example can double-up objects in-scene

UE - Anim - Sequencer - Jan 4, 2022

See the UDN for sample project. This is caused by the Editor Python sample not using the UMoviePipelineQueueSubsystem, which (when rendering) blocks the Sequencer from auto-binding to PIE. The fix ...

Custom Primitive Data types do not work with Procedural Meshes even though the option exists in their Details Panel

UE - LD & Modeling - Modeling Tools - Dec 16, 2021

This is a not a regression. Tested in UE5(Binary), UE4(Binary), and UE5 Main(P4). Procedural Meshes have the option for CPDs listed in their details panel under Rendering > Advanced >Custom Primit ...

iOS launch screen storyboard is never released

UE - Platform - Mobile - Dec 15, 2021

Stencil that has been marked with ResponsiveAA is cleared by DistortionPass

UE - Graphics Features - Dec 14, 2021

From UDN: When an object with ResponsiveAA enabled is in the screen and then an object with Distortion enabled comes into the screen, ResponsiveAA does not work. ​ I guess this is because the Ste ...

/std:c++17 key is hidden in generated .vcxproj after adding it to the BuildConfiguration.xml

UE - Foundation - Cpp Tools - Dec 10, 2021

As far as I can tell this is a regression. After including C++17 in the build configuration it shouldn't be hidden in the .vcxproj? ...

GAMEPLAYATTRIBUTE_REPNOTIFY does not properly propagate OldValue

UE - Gameplay - Dec 10, 2021

Associated UDN [Link Removed] We've been having some issues with the replication of attributes. Namely we have an OnRep_ function for an attribute that receives FGameplayAttributeData& OldValue a ...

Using a fixed frame rate will cause you to leave the loop section of Montage.

UE - Anim - Runtime - Dec 10, 2021

This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...

Duplicating skeletal mesh assets with groom in world outliner changes Hair UV layout

UE - Rendering Architecture - Materials - Dec 10, 2021

Having duplicate characters with groom, hair UV layout changes which results in visible shift in character look and also changes color based on camera distance and lights in the scene (hair would fl ...

On Hit Events are inconsistent/inaccurate when using Substepping most notably at lower frames per a second

UE - Simulation - Physics - Dec 9, 2021

This is a regression Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary Under the same conditions in UE4 the On Hit events fire accurately and as expect ...