Anisotropy not working correctly when used in Material Layers

UE - Rendering Architecture - Materials - Jan 17, 2024

1. When a Material Layer is applied and there is no node connected to Anisotropy in the master material(M_Test_1), the material does not function correctly after packaging, although it works properl ...

The light in the Blueprint Editor's Preview Scene does not respond to any lighting channel but 0.

UE - Framework - Blueprint Editor - Jun 28, 2024

In the Blueprint Editor, Primitive Components can be configured to respond to Lighting Channels 0, 1, and/or 2. However, if channel 0 is disabled (even with another one enabled), the Preview Actor's ...

Blueprints might get corrupted after inheriting multiple times.

UE - Framework - Blueprint - May 17, 2024

Blueprints might get into a corrupted state when they are inherited for a big number of times. Starting from a C++ class, if you then create a BlueprintClass from the C++ class, and keep creating ne ...

LevelStreamingPersistence plugin improvements

UE - World Creation - Worldbuilding Tools - World Partition - Dec 29, 2023

UDN: [Link Removed]Fix SaveToFileCommand : [Image Removed]Problem with private properties serializing structs:[Image Removed]Add support for runtime instantiated UObject classesAdd single restore c ...

Mesh Renders in Main Pass if Both "Render CustomDepth Pass" & "Render in Depth Pass" Are Enabled, While "Render In Main Pass" is Disabled

UE - Graphics Features - Dec 25, 2019

Meshes set to not render in the Main Pass still does if both "Render CustomDepth Pass" & "Render in Depth Pass" are enabled, while "Render in Main Pass" is disabled. Attached is an example project. ...

Drag and Drop Operations Don't Work Correctly When "Render on Phase" Is Enabled In a Retainer Box

UE - Editor - UI Systems - Slate - Jan 31, 2020

Drag and drop operations don't work correctly when "Render on Phase" is enabled in a retainer box. When "Render on Phase" is disabled the drag and drop operations work as expected. In 4.23.1 the dr ...

Special characters in file names are not escaped on Perforce commands

UE - Editor - Workflow Systems - Jun 14, 2024

Files and directories with special characters %, @, * and # are not escaped when sent to the P4 Client API. For example, an '@' character is common in root workspace folders when using concurrent bu ...

Second controller input doesn't work in fullscreen mode on PIE.

UE - Editor - UI Systems - Jun 29, 2020

When two controllers connected, player2 input is disabled in full screen mode in PIE. This doesn't appear to be in focus. If seeing the any focusing widget, player1 focused on SViewport, but player ...

BuildCookRun: EnablePlugins parameter generated improper cooking command line.

From the UDN post that reported the problem:  The BuildCookRun Automation script offers a commandline option called -EnablePlugins= which allows the user to specify additional plugins that should ...

Mobile Previewer: Content Scale Factor 0 Issues

UE - Platform - Apple - Jul 13, 2021

There are several reported issues with Save Zones displays in the mobile previewer when the Mobile Content Scale Factor is set to 0.  When MobileContentScaleFactor is set to 0 a couple things hap ...