Crash when launching a packaged project where a code class gets a reference to a Blueprint widget that contains an instance of a Blueprint struct

UE - Gameplay - Blueprint - Aug 3, 2017

A packaged project will crash on launch if a code class uses ConstructorHelpers::FClassFinder to get a reference to a Blueprint Widget that contains a Blueprint struct variable. Disabling EDL in the ...

Crash retargeting an animation blueprint with a RigidBody node

UE - Simulation - Physics - Feb 17, 2017

Crash occurs when the user attempts to retarget an animation blueprint that is using a RigidBody node. ...

Mobile VR App Crash with Monoscopic Far Field and Multi-View enabled

UE - Platform - Mobile - Nov 23, 2018

Mobile VR (Oculus Go) App Crash with Monoscopic Far Field and Multi-View enabled Workaround: Do not use Monoscopic Far Field and Multi-View at the same time Also confirmed in 4.22 Main @ CL 45 ...

Crash when updating phsyics simulated box extent during runtime

UE - Simulation - Physics - May 12, 2017

If a Box Collision component is set to simulate physics, calling "Set Box Extent" causes the editor to crash. Workaround: Setting Collision Enabled for the box component to "Physics Only" or "Query ...

Editor crashes when creating a new level while the current level contains an Actor with an Actor Sequence Component

UE - Anim - Sequencer - Jan 5, 2022

This is not a regression. Tested in: //UE5/Main CL18218925 Binary - Crashed //UE5/Release-5.0 CL16682836 Binary - Crashed //UE4/Release-4.27 CL Binary - Crashed Having a level open that contains a ...

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 ...