Editing an array config property via ProjectSettings can end up editing other platform config properties.

UE - CoreTech - May 27, 2024

Platforms .ini config files can end up with incorrect data, due to how ProjectSettings manages the config data. On a Windows machine, if we open the ProjectSettings window, all the data is going to ...

GameFrameworkComponentManager crashes when modifying init state callbacks during state change

UE - Gameplay - Feb 28, 2024

The GameFrameworkComponentManager has a system for registering callbacks to execute in response to event changes. This ends up calling UGameFrameworkComponentManager::CallFeatureStateDelegates which ...

.ini files for packaged games have their settings wiped clean every time the game is run.

The settings .ini files for games packaged for windows appear to be getting overwritten with blank files whenever the game is run. Even if settings are added to the .ini files manually, the files be ...

[CrashReport] UE4Editor_Engine!UpdateRefToLocalMatricesInner() [skeletalrender.cpp:202]

OLD - Anim - Mar 8, 2018

No user comments in the crash group ...

UPlacementSubsystem does not respect AssetFactories priorities, which is inconsistent with UEditorEngine::ActorFactories and makes it impossible to override placed actor type when dragging asset from Content Browser to Level Editor Viewport.

UE - Editor - Workflow Systems - Mar 30, 2026

Note: This issue was reproduced in UE 5.7, and it works correctly in UE 4.27. Prior to CL 24938100 (between UE 5.1 and 5.2), all existing factories were discovered and registered during engine init ...

Custom Primitive Data types do not work with Procedural Meshes even though the option exists in their Details Panel

UE - Graphics Tools - Modeling Tools - Dec 16, 2021

This is a not a regression. Tested in UE5(Binary), UE4(Binary), and UE5 Main(P4). Procedural Meshes have the option for CPDs listed in their details panel under Rendering > Advanced >Custom Primit ...

Movie Render Queue Deferred Lighting(Detail Lighting) only outputs Lighting Only

UE - Anim - Sequencer - MRQ - Jun 29, 2022

This is not a regression. Tested in //UE4/Release-4.27 CL#18319896 Movie Render Queue Deferred Lighting(Detail Lighting) appears to only output Lighting Only.  ...

Child widget of Retainerbox draws with incorrect offset of RenderTranslation

UE - Editor - UI Systems - Feb 5, 2020

The child widget of Retainerbox was applied incorrectly offset the RenderTranslation of the parent widget and draws it. This issue is 4.24 only. it's fine as well as the preview on UMG Designer in 4 ...

Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator

UE - AI - Jun 16, 2015

Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator. Crashreporter info: [Link Removed] ...