Sorting a Blueprint variable into a subcategory separates variables into separate category structures

UE - Gameplay - Blueprint - Oct 14, 2019

Within the Blueprint Editor, it is possible to create subcategories for variables to be sorted into. Doing so separates variables not nested into subcategories out into standalone, top-level structu ...

Several issues with 4.25.1 and Win 7

UE - Graphics Features - Jun 22, 2020

Users are reporting issues with the 4.25.1 hotfix and Win 7, including running cooked builds and the editor crashing: https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1755531 ...

Animation insights crash with linked anim graphs

OLD - Anim - Aug 25, 2020

From this UDN: https://udn.unrealengine.com/questions/601647/animation-insights-crash.html Looks like we need to cache the function index in FAnimNode_LinkedAnimGraph::DynamicLink and apply the sa ...

Create a Material Editor node that exposes the VertexID

UE - Rendering Architecture - Materials - Feb 20, 2023

A UDN user has requested that we expose the VertexID as a Material Editor graph node. According to a brief thread with [Link Removed] , this is a useful feature to add. https://udn.unrealengine.com ...

Crash upon opening Windows 64 bit development build with only DX10 RHI enabled

When packaging with only support for DirectX10 RHI, the editor will crash after hitting "OK" on the window that mentions that the Global Shader Cache file is missing. This was encountered while run ...

Linking Error Happens When Trying to Inherit From TextureRenderTarget2D in C++

UE - Rendering Architecture - RHI - Jan 16, 2020

The engine has a linker error when trying to inherit from TextureRenderTarget2D. This seems related to https://jira.it.epicgames.net/browse/UE-5050. Found in 4.24.1 CL#10757647 Reproduced in 4.23 ...

Renaming WP map does not remove original external actors

UE - World Creation - Worldbuilding Tools - OFPA - Oct 19, 2023

Renaming a WP map through the content browser does not delete the external actors associated with the originally named map. The rename duplicate builder seems to work correctly and can be used inste ...

[Interchange][FBX] Issue with asset name clashes after auto import

UE - Editor - Content Pipeline - Import and Export - Jan 22, 2025

The mesh changes and the asset name stays the same while the two FBX are completly different: different filename, different mesh names in the FBX CF video for repro steps. https://forums.unreale ...

Editor Performance drops when removing frames from animations with curve data

OLD - Anim - May 26, 2016

Editor Performance drops when removing frames from animations with curve keys Regression: No, removing frames on animations with curves had a chance to crash the editor in 4.11, which doesn't happ ...

UDN: Editor ignores platform-suffixed solution file names when checking for a compiler

UE - Foundation - Cpp Tools - UnrealBuildTool - Dec 3, 2015

https://udn.unrealengine.com/questions/270801/cannot-open-modules-panel-its-missing.html MikeF: The "Modules" button will automatically become hidden if the editor thinks that the user is not a pr ...