The CopySkinnedModelData() function is no longer called from anywhere in the Engine

OLD - Anim - Apr 11, 2018

The CopySkinnedModelData() function is no longer referenced by any code in the Engine as of 4.19. The function should either be marked as deprecated or removed from the Engine. ...

Functions overriden from Parent BPs are not called in Child BPs when nativized

UE - Gameplay - Blueprint - Jul 2, 2018

When nativization is enabled, functions in a child blueprint that were overriden from the parent are not called properly. Regression?: Yes This did not occur in 4.19 ...

LandscapeComponent generates incorrect OccluderVertices for software occlusion

UE - LD & Modeling - Terrain - Landscape - Sep 17, 2019

OccluderVertices didn't consider the subsection's transition, so the position of the OcclusderVertices are not correct. I made a fix as follows: [Image Removed] [Image Removed] ...

Volumetric fog rendering gets cut off at the apex for some spot lights when viewed from certain angles

UE - Rendering Architecture - Apr 19, 2023

Fix is found in licensee’s pull request:https://github.com/EpicGames/UnrealEngine/pull/10333/files ...

Creating new objects inside ForEachObjectWithOuter may cause the bucket of the iterated outer to be read-locked permanently

UE - Foundation - Feb 8, 2022

Not a Regression. Tested in: //UE5/Release-5.0 CL 18747223 Source-GitHub //UE4/Release-4.27 CL 18319896 Binary User Description: "The crash test code is located at Source/HashBucketLockedBug/Pr ...

Packaged Game crashes when using blend space that was added from the context menu

UE - Anim - Runtime - Anim Blueprints - Nov 16, 2021

Blendspace created within an animation blueprint from the context menu throws an assertion when packaged and ran. Only occurs in packaged projects. The blendspace will work correctly in PIE, and st ...

Crash while trying to import a C4D file with Animation via Datasmith

UE - Editor - Content Pipeline - Datasmith - Importer - Apr 10, 2020

The file was originally created by Mixamo and saved as FBX. It was resaved it in C4D with the Save for Cineware Option. Importing it into the Editor causes it to crash. This was tested and reported ...

GameplayTagContainers can cause a crash in packaged builds when Event Driven Loading is enabled

UE - Gameplay - Dec 15, 2017

A user has reported that using a GameplayTagContainer can cause a packaged build to crash when EDL is enabled in certain cases. In this case, if the base C++ class that includes this GameplayTagCont ...

Crash Occurs When Running EQS Query on Mobile

UE - AI - Oct 19, 2016

Deploying a project to a mobile device that runs an EQS Query is causing the game to crash on the device. This has been tested with a Galaxy Note 4 and iPhone 5s. Attached are the logs from the de ...

Crash when playing a HapticFeedbackEffect_Soundwave

UE - Platform - XR - Aug 30, 2016

Array is -1 indexed, causing a crash. Fix is already in Dev-VR. Integrate to 4.13.1 (CL 3106922) ...