Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash

UE - Gameplay - Blueprint - Jun 28, 2015

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...

Zip up project does not include project plugins

Tools - Aug 5, 2015

Not all plugins live under Engine, PlatformerGame being an example of one. ...

Unexpected Collision Response When Nesting Primitive Components with auto-weld enabled and physics disabled on children. The root primitive falls through floor even though it is set to block all.

UE - Simulation - Core - May 27, 2025

Context Auto-weld makes it so if a child is attached to a parent, the two bodies will be joined into a single rigid body. Physic settings like collision profile and body settings are determined by t ...

StructUtils plugin's `FInstancedStruct` in a CPP-defined struct in a `TArray` on an actor component defined in CPP and implemented in BP. Populating the instanced struct in an actor BP's class defaults breaks serialization of the class defaults.

UE - AI - May 30, 2025

Context Instanced structs are great for holding simple data with the main advantage they have is a low memory overhead unlike instanced objects. Problem The problem is in StructUtils plugin's `FIns ...

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% ...

EditorCube added to the scene with a Geometry Script will have reversed normals

UE - Graphics Tools - Modeling Tools - GeometryScripting - May 31, 2023

The work around is to use the modeling mode normal tool to regenerate normals. This appears to mainly occur on any cubes added by the "Copy Mesh from Static Mesh" Regression tested in 5.0.3 at CL 2 ...

Crash after enabling USD plugin in binary editor

UE - Foundation - Cpp Tools - Plugin System - Apr 27, 2017

This crash occurs when enabling the USD plugin on the binary editor ...

Deactivating a shot section from scripting does not affect evaluation

UE - Anim - Sequencer - Jun 23, 2021

Disabling a shot from scripting will not affect evaluation of the sequence.  ...

Android x86_64 fails to compile for default plugins

UE - Platform - Mobile - Dec 9, 2019

Need to ignore the OculusMR module when the Oculus plugin is enabled (it is by default) as it fails to compile for x86_64 architecture for Android. ...

Cannot build for Windows with the Steam VR plugin Enabled

UE - Platform - XR - May 19, 2015

If a user has the Steam VR plug in enabled it will cause the build for windows to fail when trying to package. ...