Crash when duplicating multiple components at once

UE - Gameplay - Blueprint - Apr 4, 2019

When duplicating multiple components at once it appears to crash the editor. Regression: Yes, this appears to be working in the previous version of the engine (4.21.2-4753647) ...

Adding Niagara system to a projectile causes a crash

UE - Niagara - Jul 29, 2019

Adding a Niagara system to a BP_Projectile in a C++ First Person Project  and then restarting it causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 744 ...

Crash on bake pose when skeleton contains a virtual bone

OLD - Anim - Jan 22, 2018

When a skeleton contains a virtual bone, performing Bake Pose can crash the editor. ...

Editor can crash while performing a Hot Reload after a custom UClass class is added to the project

UE - Foundation - Cpp Tools - Hot Reload - Mar 14, 2019

Performing a Hot Reload after creating a custom UClass class can result in a crash. This was reported on Linux, but reproduced on Windows. Additional testing will be done on Linux to confirm the is ...

Crash changing variable type from Object Reference to Actor Soft Object Reference

UE - Gameplay - Blueprint - Oct 3, 2017

REGRESSION: No, this occurs as far back as 4.16. Crash occurs when the user changes a variable type from Object Reference to Actor Soft Object Reference. ...

Importing fbx onto an empty camera animation sequence can crash the editor

UE - Anim - Sequencer - Jan 27, 2022

Importing an FBX into an empty camera animation sequence crashes the editor. The import seems to fail when trying to add a camera cut track. Exporting an fbx from a camera animation sequence, deleti ...

Editor asserts when deleting a morph target from a skeletal mesh

UE - Editor - Content Pipeline - Asset Build - Oct 24, 2022

TAttributeContainer::CopyFrom crashes when container contains invalid bone indices for active mesh

UE - Anim - Runtime - Jun 16, 2024

Currently there's no validation within the animation attribute container that bone ids are valid.  This means that client/game code can add attributes with invalid bone ids into the container and th ...