Oculus Touch Menu Button Input Not Received When Set In Action Mapping

UE - Platform - XR - Mar 9, 2020

The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...

Cannot copy and paste cloth config parameters

UE - Simulation - Physics - Character - Apr 23, 2020

Copy/pasting cloth configs used to be possible in 4.23. It then got broken in 4.24 (crash) with the introduction of changes required for the new physics engine. In 4.25, the config evolved to a Map ...

Event Dispatcher objects cannot be deleted after the initial graph node is renamed

UE - Gameplay - Sep 14, 2020

Adding an Event Dispatcher to the Level Blueprint and then renaming the initial graph node within that Event Dispatcher prevents deletion from that point forward. Renaming the Event Dispatcher from ...

Selecting All Actors and then moving them results in the children being offset from parents

Tools - Feb 9, 2021

When using Select All, the children are selected as well. When you move the actors, the children begin to move at different rates than the rest of the actors, resulting in them being offset when you ...

Crash when drag selecting a level in an orthographic view with a control rig asset

UE - Anim - Rigging - Control Rig - Feb 11, 2021

When adding a Control Rig asset to a level, choosing one of the orthographic views, and then drag selecting any part of the level, the editor crashes. This does not occur if you drag select in the p ...

Private functions can be overriden in the "My Blueprint" tab

UE - Framework - Blueprint Editor - Apr 29, 2022

Discovered during investigation of [Link Removed]. This is happening because we are not filtering out private parent functions in SMyBlueprint::BuildOverridableFunctionsMenu. With any fix that is ...

UMovieSceneTrackInstance::GetWorld() does NOT work properly in Editor

UE - Anim - Sequencer - Mar 28, 2023

UMovieSceneTrackInstance::GetWorld() returns nullptr on Editor, so user can't use any function using WorldContext and Subsystem. The following code change may fix this issue UWorld* UMovieSceneTra ...

Invalidation panels can retain stale hittest data when caching is disabled/enabled

UE - Editor - UI Systems - Slate - Aug 20, 2024

Changes to the hit test grid of an invalidation panel while caching is disabled won't be respected when caching is reenabled. This can cause interactive widgets such as buttons who were set to colla ...

Dataprep crash

UE - Editor - Content Pipeline - Visual Dataprep - Apr 16, 2025

This question was created in reference to: [Link Removed] Last post fixed the import crash, but it seems it added another. If we hit Execute button twice in a row by mistake we get a crash with th ...

Moving the file location of the Editor Startup map appears to break the reference to the startup map

Tools - Nov 10, 2016

Moving the file location of the Editor Startup map appears to break the reference to the startup map. The editor fails to find the map and so does not use it for the start up map. Notes: In the ...