Montage Editor: Mouse Wheel Cannot Scroll to the Bottom of notify section when there are many track.

UE - Anim - Runtime - Jul 21, 2025

When a large number of notify tracks are added in the Montage Editor, the mouse wheel scroll does not allow the user to reach the bottom-most tracks. Only by manually dragging the scrollbar can the ...

Renaming a Blueprint interface asset doesn't update the ImplementedInterfaces list in the Blueprint editor's Class Settings tab

UE - Gameplay - Blueprint Editor - Nov 13, 2023

There is no UI refresh for the Implemented Interfaces list in the Blueprint editor UI after a Blueprint Interface asset is renamed in the Content Drawer. Consequently, the interface cannot be remove ...

Cloth paint update issues

UE - Simulation - Physics - Jan 7, 2020

Activating and Deactivating Cloth Paint marks the skeletal mesh as dirty, even if no values were painted and there is no transaction in the Undo History. Painting Max Distance values from non-zero ...

Navigation System is gathering navigation bounds too early

UE - AI - Aug 6, 2015

In GameInstance.cpp when the Navigation System is created it calls... UNavigationSystem::InitializeForWorld This in turn ends up calling... GatherNavigationBounds(); This goes through all ...

Crash in RHICommandContext& GetContext() in Test/Shipping builds when bUseChecksInShipping is true

UE - Rendering Architecture - RHI - Nov 29, 2022

RHIinit() calls GRHICommandList.GetImmediateCommandList().GetContext() to make sure that GDynamicRHI->Init() initialized the immediate command list (by calling FRHICommandListImmediate::InitializeIm ...

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 ...

Imprecise Rotation Values produced in the Details Panel when using the Rotation Widget in the Viewport

Tools - Mar 29, 2016

Starting with an asset (static mesh for instance) with a precise rotation value (such as a whole number) in the details panel will result in a imprecise, slightly fractional off value when rotated ...

Spot Lights are not using Light Propagation Volumes when enabled

UE - Graphics Features - May 23, 2016

As of 4.9 Dynamic Indirect Lighting with Light Propagation Volumes should be supported for Spot Lights. This does not appear to be the case for several versions that I could see. Using the methods o ...

Instances In a Hierarchical Instance Static Mesh Component Don't Retain PerInstanceRandom Values When Rotated

UE - Graphics Features - Dec 9, 2019

When an instance in a Hierarchical Instance Static Mesh component is rotated using "Update Instance Transform" it doesn't retain it's material's base color value when the material uses PerInstanceRa ...

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 ...