Unreal Engine Issues
Unreal Engine Issues
UE5.6+ - Mutable - IDPrefix crash when combining Child Objects, Add to Mesh Component and Extend Mesh Section.
UE - Anim - Mutable - Jul 21, 2025So the issue seems to be a combination of Add To Mesh Component and Extend Mesh Section. I've tried this in Epic Launcher 5.6, 5.6 in-house modified engine as well as ue5-main 5.7 from git (editor ...
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, 2022Geometry 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, 2017See 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, 2018This 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 ...
Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open
UE - Niagara - Mar 7, 2019Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open Discovered when verifying [Link Removed] (also similar to [Link Remo ...
Renaming a custom component code class and performing a Hot Reload will cause the Editor to crash when a Blueprint containing an instance of that component class is opened.
UE - Gameplay - Blueprint - Nov 26, 2014Renaming a custom ActorComponent class when that class is set as a component in a Blueprint and performing a Hot Reload will crash the Editor if the Blueprint is opened for editing after the project ...
[CrashReport] Linux crash - FLinuxApplication::CreateLinuxApplication()
UE - Platform - Linux - Jul 20, 2017This is a longstanding Linux crash that occurs with some frequency each release. ...
Nativized build will crash on load if a member variable in a nativized parent Blueprint class references a non-nativized child Blueprint class asset.
UE - Gameplay - Blueprint - Aug 9, 2017This occurs because there exists a circular reference between the nativized parent BP and the non-nativized child BP asset (which is a data-only Blueprint in this case). Current suggested workaroun ...
Editor will crash on attempt to load a previously-saved Blueprint asset with a serialized default subobject containing a serialized static array of two or more nested subobject instances.
A crash will result if a Blueprint class that's based on a native C++ class containing two or more nested, explicitly-instanced subobjects referenced by a fixed-size object array property are serial ...
Crash after creating a new project
Tools - Apr 29, 2020User receives a crash at %90 during launch of a newly created project from a fresh install of 4.24.3 and 4.25. The project does not contain any plugins or additional content. Note: User is able to ...