Using Custom Primitive Data as Final Colour in a UI Material crashes the engine with a missing uniform buffer

UE - Rendering Architecture - Materials - Jul 3, 2024

Using custom primitive data as an input in a UI material causes the engine to crash in the RHI thread. The exact crash is "Missing uniform buffer at slot 1, stage SF_Pixel." at Engine\Source\Runtime ...

Geometry Collection's Chaos Cache Static Pose Scrubbing broken in 5.6 due to Custom Renderer GeometryCollectionRootProxyRenderer

UE - Simulation - Physics - Destruction - Aug 26, 2025

Geometry Collection's Chaos Cache Static Pose Scrubbing broken in 5.6 due to Custom Renderer GeometryCollectionRootProxyRenderer. The licensee has provided his analysis: In 5.6, when creating a Geo ...

Adding a custom plugin to a code project that is in the root location of a drive will result in an error stating that the plugin was found in two locations

UE - Foundation - Cpp Tools - Plugin System - Nov 25, 2016

Creating a new custom plugin in the root location of a drive results in the project being unable to open or build. An error message appears that states that the plugin was found in two locations, an ...

.natvis for external modules is not supported

UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 22, 2023

Currently UBT supports linking in .natvis files when modules are compiled, this should be extended to pull in .natvis files from External modules that are linked into a module. Instead of scanning ...

Plugins need to support localization

UE - Editor - UI Systems - Localization - Jul 29, 2013

Plugins need to support localization. Also requested by this licensee: https://udn.unrealengine.com/questions/280012/%E7%8B%AC%E8%87%AA%E3%81%AE%E3%83%95%E3%83%A9%E3%82%AF%E3%82%A4%E3%83%B3%E3%83% ...

Cross compiler crashing with custom expressions

UE - Graphics Features - Dec 5, 2016

This looks like a bug with shader pipeline compilation and custom expressions. ...

AbilityAsync objects do not have proper EndAction support

UE - Framework - Blueprint - Aug 18, 2021

UAbilityAsync objects do not properly support a way to EndAction like a UAbilityTask. ...

Fbx exporter do not support material instance

UE - Editor - Content Pipeline - Import and Export - May 15, 2020

The fbx exporter should support material instance to export the same result has the user see in the content browser or in the level editor. ...

Remove Ant from Android supported build systems

UE - Platform - Mobile - Oct 7, 2019

We now only support Gradle for Android; Ant is fully depreciated. ...

Custom TouchInterface doesn't fade to Inactive Opacity

UE - Platform - Mobile - Jan 12, 2016

Custom TouchInterface doesn't fade to Inactive Opacity User Description: Virtual Joystick always show on screen, even if Time Until Deactive is 0.00001. ...