Nativized build will crash on launch if a nativized Actor-based Blueprint class includes an instanced subobject that references another instanced subobject but does not also own it.

UE - Gameplay - Blueprint - Jul 11, 2017

Crash occurs because the generated ctor for the nativized Actor-based Blueprint class is incorrectly trying to recreate a default subobject it owns through another instanced subobject. ...

Nativized builds will crash on launch if a non-nativized Blueprint references a User-Defined Enum property in a nativized Blueprint.

UE - Gameplay - Blueprint - Jul 20, 2017

EDL-related crash occurs on launch of exclusively-nativized build where a non-nativized BP references a User-Defined Enum property in a nativized BP. Related to [Link Removed], but this is a parall ...

Crash occurs when trying to edit a MetaSound Source asset while a MetaSound Source object is referenced utilizing FObjectFinder in C++

UE - Audio - MetaSounds - Apr 14, 2022

Crash occurs when trying to edit a MetaSound Source asset while a MetaSound Source is referenced utilizing FObjectFinder in C++ Repro Rate: 3/3Fatal error: [File:D:\build\++UE5\Sync\Engine\Source\R ...

Crash when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles.

OLD - Anim - Jun 15, 2018

the editor Crashes when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles. Found in 4.19 CL# 4033 ...

Able to set default values for Sequence & Map variables for a Movie Pipeline Executor Job causing an Ensure & Crash

UE - Anim - Sequencer - MRQ - Apr 18, 2022

Able to set default values for Sequence & Map variables for a Movie Pipeline Executor Job causing an Ensure & Crash. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the user is ...

Editor Crashing when trying to launch on to any device.

UE - Graphics Features - Oct 7, 2016

When trying to launch on to any device the editor crashes. ...

Editor crashes when opening a project that has a variable in a Blueprint function with the same name as a different replicated variable in the Blueprint's parent code class

UE - Gameplay - Blueprint - May 17, 2017

If a replicated property in a parent code class has the same name as a variable contained within a function of a Blueprint that derives from that parent class, the Editor will crash while attempting ...

Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 input pin

UE - Graphics Tools - Modeling Tools - Jun 13, 2022

Geometry Scripting plugin isn't available for 4.27.2, and the behavior is the same 5.0.1. Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 ...

Reflection capture crash in FindOrAllocateCubemapIndex

UE - Graphics Features - Mar 15, 2017

See UDN thread ...

A crash in editor will result after swapping inherited SCS component names at the parent class level before loading a child class that overrides them.

UE - Gameplay - Blueprint - Oct 26, 2018

This is an editor-only crash that's due to stack overflow/infinite recursion in UInheritableComponentHandler::FixComponentTemplateName(). We are recursively trying to rename other inherited componen ...