"Start Previewing Node" Does Not Work For Post Process Materials

UE - Graphics Features - Oct 1, 2018

Using "start previewing node" in a post process material does not work. The preview will only show the final result that is connected to the material attributes.  Working as expected in 4.18 CL# 38 ...

Blueprint Functions with a Parameter Named "Category" Will Change the Functions Category Back to Default

UE - Gameplay - Nov 19, 2018

When creating a Blueprint Function under a non-default category, if you name one of its parameters "Category" the function will be moved back to the default category. This is working as expected in ...

Materials with a custom node with a Struct that has a function fails to compile for GLSL (Android) and uses a default material

UE - Graphics Features - Apr 29, 2019

A user has reported that Materials that contain a custom HLSL node that has a Struct with a function declared inside of it results in the material failing to compile for GLSL, causing the Material t ...

Widget component navigation does not work in Standalone

UE - Editor - UI Systems - Jun 14, 2019

When running a standalone build, focus navigation doesn't work on widgets within a world-space widget component. This may be fallout from [Link Removed], which parented the widget component's virtua ...

add_possessable doesn't work for all objects

UE - Anim - Sequencer - Jun 17, 2019

Using following code in Python: seq.add_possessable(seq.add_spawnable_from_class(unreal.CineCameraActor).get_object_template().camera_component) doesn't create a camera component track in sequen ...

In-Editor Tutorials are unresponsive when selecting them

Docs - Sep 29, 2021

@triage need approval to submit this into 4.27.2 When trying to select any of the tutorials in the editor, all of them except for the "Welcome to the Unreal Editor" tutorial are unresponsive. They ...

BP multi-level inheritance does not correctly inherit 'Static' mobility

UE - Framework - Blueprint - Sep 8, 2022

User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...

Parameters show up in material instances even if they're not supposed to be exposed

UE - Rendering Architecture - Materials - Feb 28, 2018

In this case, I've added inputs to a material function. That material function input uses a parameter as it's default value. [image: Inline image 1] When referenced in the shader[image: Inline ima ...

Cloth painting - Camera movements are broken once leaving the painting tool.

UE - Simulation - Physics - Character - Aug 29, 2023

Possibly a regression, but I could reproduce this issue as far as 5.2, so unsure when it started. The issue seems to be that the cloth painting tool lock the camera movements during painting, but d ...

The number of elements in an array remain the same as the default when duplicating an actor

UE - Gameplay - Blueprint - Feb 22, 2017

If a user removes elements from an array in an instance of that blueprint in the level and then duplicates the actor (in the level ) containing the array, then the resulting actor will have the orig ...