In Standalone mode, when reading world partition actor descriptors for BP actors, "bIsSpatiallyLoaded" receives its value from the native base class instead of the BP class, so BP actors are loaded/unloaded based on the wrong condition.

UE - World Creation - Worldbuilding Tools - World Partition - Oct 15, 2024

Consider an actor defined in C++ with "bIsSpatiallyLoaded" set to true (the default), and a derived blueprint that overrides "bIsSpatiallyLoaded" to false. Now consider an actor instance of that blu ...

Starting position of physics simulated bp is different in Standalone Game

UE - Simulation - Physics - Feb 26, 2016

Starting position of physics simulated bp is different in Standalone Game User Description: Things work fine in the editor window, but when I run a standalone game then blueprints with physics bod ...

ShowOnlyInnerProperties does not work on a struct property in a class nested within another class as an instance

UE - Gameplay - Blueprint - Feb 19, 2019

When the ShowOnlyInnerProperties property specifier is used for a struct property, the properties contained within the struct are exposed to the Blueprints Details panel as if they were part of the ...

MAC: Crash summoning context menu

UE - Platform - Apple - Jan 6, 2015

Crashes only happends on projects that are almost done(2 projects and both are BP only), does not crash when start new project. Log is upload on pastebin, link to log: [Link Removed] ...

Modifying FinstancedStruct (Blueprint structs) properties inside another FInstancedStruct triggers an ensure and properties do not get saved.

UE - AI - Dec 16, 2024

There is a bug with Blueprint structs having FInstancedStruct as a property. If you modify the DefaultValues of any property of an FInstancedStruct inside the blueprint struct asset, an ensure will ...

Nanite Instanced Static Meshes lost selection outlines in UE5.5

UE - Graphics Features - Nanite - Mar 6, 2025

Nanite ISMs lost selection outlines in UE5.5 Actors having an ISM component which uses a static mesh with nanite do not get a selection outline when selected in the editor. Having Nanite is essentia ...

Crash opening FaceARSample on iOS

UE - Platform - XR - Jul 26, 2019

FaceARSample is crashing as soon as it is opened on iOS. Tested on a iPhoneXS 12.4.  Regression: Yes I was able to get FaceARSample on the same device the previous release 4.22. ...

Cmd+W and Cmd+Q Keybindings for Mac Both Close the Editor

UE - Platform - Apple - Feb 16, 2015

While in the Editor with a Mac the user can press either Cmd+W or Cmd+Q to exit. The user on AnswerHub is reporting that the Cmd+W should close an active window or tab, where as the Cmd+Q keybinding ...

Collision build of LiDAR point cloud assets at runtime does not apply

UE - Editor - Content Pipeline - Datasmith - Oct 24, 2023

Collision build at runtime for LiDAR point cloud does not apply. This applies to Editor and Standalone. If you do not allow collision builds at runtime, this module should not be available at runtim ...