Unreal Engine Issues
Unreal Engine Issues
Editor crashes when an Animation Blueprint Template is compiled with 'Layered Blend Per Bone' node
UE - Anim - Runtime - Mar 17, 2022Editor crashes when an Animation Blueprint Template is compiled with 'Layered Blend Per Bone' node. ...
ListView crashes when GlobalInvalidation is enabled.
UE - Editor - UI Systems - Slate - Jan 11, 2022Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...
Ensure thrown when applying a Linear Color User Exposed Variable in a Niagara Emitter
UE - Niagara - May 20, 2022This is a regression tested in //UE4/Release-4.27 CL18319896. Ensure thrown when applying a Linear Color User Exposed Variable in a Niagara Emitter. ...
Crash when hot reloading after adding HISM Component class
UE - Foundation - Cpp Tools - Hot Reload - May 15, 2017After adding a class based on "Hierarchical Instanced Static Mesh Component", any attempt to hot reload, from Visual Studio or within the editor, causes the editor to crash. Regression: No - crash ...
OBJ file causes a `Debug Assertion Failed!` error
UE - Editor - Content Pipeline - Import and Export - Dec 23, 2015When importing this users file of an OBJ asset there will be an assertion failed error. On the import message if you hit "ignore" until the mesh imports all will work in 4.10 or later. This was no ...
Compiling twice then pressing play/stop after creating a c++ Game Instance causes a crash
UE - Foundation - Cpp Tools - Live Coding - Jan 24, 2022This is not a regression. After creating a C++ based Game Instance the Editor crashes if you compile twice then play and stop. ...
Pasting a folder on the Outliner while LightMixer and ViewChanges windows are open/docked crashes the Editor
UE - Virtual Production - Tools - Jun 12, 2025When both LightMixer and ViewChanges windows are open, pasting a folder into the Outliner crashes the editor. For more detailed steps, refer to the Steps To Reproduce section. This happens whenever ...
Crash while closing Create Blank New Blueprint window after attempting to name blueprint the same name as another blueprint
UE - Gameplay - Blueprint - Jul 27, 2016Crash while closing Create Blank New Blueprint window after attempting to name blueprint the same name as another blueprint. This crash only occurs when attempting to close the window using the "X" ...
Editor Crashes if GetMaterialIndex is called with an invalid slot name
UE - Graphics Features - Feb 8, 2017Calling Get Material Index node with an invalid slot name will produce a return value of -1. Passing this value to a Get Material node causes the editor to crash. ...
Opening a DataTable that is set to a Struct that is using a Key variable will crash the editor
Tools - Nov 3, 2015Opening a DataTable that is set to a Struct that is using a Key variable will crash the editor User Description: I'm getting this crash when using Key variable in DataTable. I was able to repro i ...