Crash when AnimBlueprint and Bleuprint Interface has Same Name Function

OLD - Anim - Nov 12, 2019

When AnimBP and Blueprint Interface was added to the AnimBP has same name function, compiling AnimBP occur crash. ...

Crash when enabling Shader Complexity Viewmode

UE - Graphics Features - Oct 11, 2022

Material Editor Assertion Crash When Collapsing Material Attributes

UE - Rendering Architecture - Materials - Jul 14, 2022

Collapsed material attribute nodes cause an editor assertion crash in the material editor when viewed or opened. Assertion failed: (Index >= 0) & (Index < ArrayNum): Array index out of bounds: 0 fr ...

Crash occurs while attempted to drag and drop an asset from Bridge while it is docked to the Sidebar

Quixel - May 17, 2022

An Assertion is thrown while attempting to drag and drop an asset from Bridge while it is docked to the Sidebar ...

Crash When Setting a Bool in a Niagara Parameter Collection via Blueprint

UE - Niagara - Feb 26, 2019

The Editor will crash when setting a bool in a Niagara Parameter Collection via Blueprint. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5159901, 4.23 CL# 5194133 ...

Crash when using the Blueprint merge tool

UE - Gameplay - Blueprint Editor - Apr 26, 2021

The Editor crashes when merging a change using the Blueprint Merge tool on Linux.  ...

BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.

UE - Gameplay - Blueprint - Apr 20, 2017

Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...

ARCore fails to package due to permission error with ARKit enabled

UE - Platform - XR - Jan 17, 2019

When using the handheld AR template and trying to package for ARCore, the package or launch on attempt will fail due to some permissions errors with Apple. If ARKit is disabled the editor will lock ...

Crash after removing decal (using set fade out node) during design time and then hitting play

UE - Gameplay - Blueprint - Feb 5, 2019

When calling set fade out on a decal during design time via a custom event that is setup to be called in editor a crash will occur when clicking PIE ...

Crash when generating proxy mesh

Tools - Jul 12, 2019

Generating a proxy mesh with imported models and the simplify mesh flag set to true causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7288428), 4.24 (CL ...