Adding a Blueprinted custom StaticMeshComponent to a Blueprint results in an Ensure being triggered.

UE - Gameplay - Components - Aug 24, 2015

If a Blueprint is made from a custom Blueprintable StaticMeshComponent, and that Blueprint is added as a component to another Blueprint, an Ensure is triggered. No Ensure occurs if the custom nativ ...

"Always Center Window to Screen" No Longer Functioning in New Editor Window (PIE)

Tools - Dec 11, 2015

Regression: In UE4.10, the border that now occurs around New Editor Window causes window to extend beyond native screen resolution designated in Editor Preferences causing the window to 1) Not be ce ...

GAS: DefaultSubobject AttributeSet becomes invalid on duplicated blueprint

UE - Gameplay - Gameplay Ability System - Apr 22, 2025

When a native actor 'AMyActorClass' creates AttributeSets as a default subobject via CreateDefaultSubobject, duplicating an actor blueprint based on AMyActorClass will result in a blueprint with an ...

UBT does not add include directories that differ by case only

Tools - Oct 11, 2016

If you have a sitatuion like Public/Filename/Foo.h Public/FileName/Bar.h you cannot have #include "Foo.h" #include "Bar.h" in your .cpp file during the native build. Either Foo.h or Bar.h will b ...

Properties on a child instanced class do not appear in the UMG Bind menu

UE - Editor - UI Systems - Dec 5, 2017

Currently, properties added to a native class in a derived blueprint class are not being recognized by the Bind menu on UserWidgets. The only way to make additional properties appear in this list is ...

Restored child editor windows have no title

Tools - Aug 3, 2020

Child windows created as part of the editor startup process won't have a title. This happens because the native window hasn't yet been created when we set the title in FTabManager::RestoreArea_Helpe ...

Flickering Meshes after removing HISM instances

UE - Graphics Features - Aug 2, 2018

Removing HISMs in a packaged project causes meshes to remain and flicker in a packaged project. (Inclusive Nativization is enabled in test project, but issue occurs with nativization disabled as we ...

Subobject components do not have undo functionality within the level

Tools - Jan 4, 2021

When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not.  I could not repro this behavior with non-native component ...

Callback ID lost while using the webview

UE - Platform - Apple - Nov 8, 2022

This is a licensee UDN: [Link Removed] I've reviewed the javascript/native bridge code and I don't see anything obvious.  The fact that it can happen on both mobile platforms might point at some hi ...

Import/export single culture localization failing

UE - Editor - UI Systems - Localization - Jul 11, 2017

[Link Removed] it seems like in 4.16 clicking the "Export translations for this culture" button (and perhaps import as well) for cultures that are not the native culture, you get an error ...