Crash on adding new element to ChaosCacheCollection if ChaosCacheCollection is open in editor

UE - Simulation - Physics - Destruction - Dec 11, 2020

More ways to reproduce:In Chaos Cache Collection Editor press Add Element button (no matter when you will do this step)If in Step13 from Steps to reproduce you won't place Chaos Cache Collection Edi ...

Electra video playback fails if project or package is under multibyte characters path

UE - Media Framework - Sep 16, 2022

The URL parser encodes the input path to a URL-encoded path even if it is local, so if the path contains unicode characters (such as Japanese Kanji ), the media file cannot be read. Following worka ...

Crash on startup with a Blueprint deriving from an abstract class with a SpriteComponent

Tools - Feb 7, 2018

Appears to be an issue with load order and the timing of when we populate the 'ShowSpriteCommands' and 'SpriteIDToIndexMap' containers, which we assert on if they're not the same size. The original ...

Trying to chord two buttons already mapped to actions to fire a third action when both are actuated fails.

UE - Gameplay - Input - Apr 14, 2022

We're aiming to set up LT - action 1, RT - action 2, LT + RT - action 3 here. I don't think this is supported via chording at present. You'd need to handle it manually (probably via adding/removing ...

Editing a specific LOD and then using Remesh causes geometry to disappear

UE - Graphics Tools - Modeling Tools - Apr 13, 2023

from licensee:"Expected behavior: The LOD selected to be edited should be saved correctly, allowing different remesh results to be saved as different LODs of the same mesh, _i.e. remesh with 1 cm t ...

Actor attached to other actor in LevelInstance has very large bounds

UE - World Creation - Worldbuilding Tools - Level Instances - May 26, 2023

Attached actors do not return to LevelInstance space at the end of LevelInstance editing, and bounds contains level instance offset location. This results in huge bounds. My workaround is:  void FL ...

Disabling Occlusion Culling and DBuffer Decals causers crash

UE - Graphics Features - Sep 1, 2017

THere is a crash that occurs when opening a project after the Occlusion Culling and DBuffer decals option are unchecked. There are times where the Unreal Crash reporter catches the crash and display ...

Control Rig parameters don't function in the AnimBP after the Editor restarts

UE - Anim - Rigging - Control Rig - Jun 14, 2020

Control Rig parameters don't function after editor restarts. Also the default values don't function and you need to use an input instead of directly editing the values of the pins. You can work aro ...

Destructible cannot change collision profile at runtime via Blueprints

UE - Simulation - Physics - Destruction - Jan 6, 2015

DESCRIPTION: When attempting to change the collision profile of a destructible via Blueprints it will not set appropriately. The collision profile set via the details panel for the individual object ...

LiDAR plugin crashing with VR Instanced Stereo enabled

UE - Platform - XR - Jan 26, 2023

When enabling LiDAR plugin with VR Instanced Stereo enabled it causes a crash. Alternate repro: From Any project Enable Instanced Stereo in project settings Enable LiDAR Point Cloud Support Restar ...