GameplayTagContainers can cause a crash in packaged builds when Event Driven Loading is enabled

UE - Gameplay - Dec 15, 2017

A user has reported that using a GameplayTagContainer can cause a packaged build to crash when EDL is enabled in certain cases. In this case, if the base C++ class that includes this GameplayTagCont ...

Crash after Disabling Post Process Blueprint on a Skeletal Mesh

OLD - Anim - Aug 20, 2019

Changing the Anim Class in the Details Panel before Disable Post Process Blueprint can prevent the crash from occurring. Changing the Animation Mode does not seem to prevent this crash.  The conten ...

Editor crash when attempting to access Window menu bar after compiling plugin through the editor

UE - Foundation - Cpp Tools - Plugin System - Jan 27, 2016

The editor will crash if the Window menu button next to Edit is pressed after compiling a toolbar plugin through the editor and attempting to click/use it. ...

Intermittent Crash in SGraphNode when saving

UE - Gameplay - Blueprint Editor - Apr 5, 2016

Licensee observed crash in SGraphNode after modifying comments on blueprint nodes and saving. Has seen similar crashes before, unable to figure out how to reproduce them. ...

Parameter distributions can be reset to None in Cascade Particle Systems, causing Cascade to Niagara conversion to crash the editor.

UE - Niagara - Apr 18, 2022

Cascade to Niagara conversion causes the editor to crash due to any distribution parameter in the Particle Emitter being reset to none. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL# 1831 ...

Crash When Substance Material Is Applied to a Mesh In HLOD System

UE - World Creation - Worldbuilding Tools - HLOD - Sep 3, 2018

Crash when Substance material is applied to a mesh included in the HLOD system. Working as expected in 4.19 CL# 4033788. Unable to test issue in 4.21 CL# 4339215 due to plugin dependency. Found in ...

Crash when mousing over array parameter in Blueprint function graph while debugging

UE - Gameplay - Blueprint Editor - Mar 3, 2020

Mousing over an array input inside a Blueprint function can lead to a crash. For this to occur, the first parameter of the function must be a User Defined Struct.  ...

Watch Pin Crash on Softclasspath

UE - Gameplay - Blueprint Editor - Mar 26, 2020

Mousing over a softclasspath pin from a struct while debugging a Blueprint can lead to a crash.  ...

Editor crashes when opening a project that includes a plugin with more than two custom Volume classes

Tools - Jun 7, 2017

Adding more than two custom Volume classes to a plugin results in any project that includes that plugin crashing when opening it in the Editor. There does not appear to be a problem with adding thre ...

Crash when Deleting Variable from Blueprint Struct

UE - Gameplay - May 23, 2019

The Editor will crash when attempting to delete a variable from a Blueprint struct. This crash does not seem to happen if save the map with the actor in it. ...