AbilitySystemComponent::NotifyAbilityEnded Can Crash due to Callbacks Invalidation Specs

UE - Gameplay - Gameplay Ability System - Oct 11, 2023

Pasting from the UDN: Unsafe code in AbilitySystem can lead to crash when granting an ability inside OnAbilityEnded Hello. We just ran into a crash. After investigation, it seems to be caused by ...

Crash when copy and paste a Child Actor Component in blueprint.

UE - Gameplay - Blueprint - Nov 14, 2018

A crash occurs when copy and paste the ChildActorComponent, only if the template actor has a DefaultSubObject. There is no crash in the case of using Actor (eg. AActor) without a DefaultSubObject as ...

The crash reporter tool does not start on Windows 8.1 machines when running the Engine built from source code.

UE - Foundation - Core - Dec 5, 2014

The source code to build the Engine that is available from GitHub includes the file dbghelp.dll, which prevents the crash reporter tool from starting on Windows 8.1 machines. This file is not presen ...

Crash occurs when an element of a fixed-size FText array is edited in a Blueprint.

UE - Gameplay - Blueprint - Jan 23, 2017

The Editor can crash if a fixed-size FText array is created. Attempting to edit one of the values of the array in a Blueprint will result in a crash. ...

Crash Occurs While Running EQS Using Add Generated Vector Node

UE - AI - Sep 8, 2016

A crash is occurring when running a custom EQS generator that returns a Point and uses the Add Generated Vector node. This is a regression. No crash occurs with the same setup in 4.12.5. ...

Crash while scrolling through language options in Packaging settings

Tools - Jul 21, 2017

This is a trending crash in the 4.17 preview. This is a regression Broken: 4.17.0-3528061 Worked: 4.16.2-3514769 User Descriptionsproject/settings/intern..language. Crashed it just by scrolling t ...

Crash occurs with PlatformMediaSource called in infinite loop

Tools - Jan 18, 2017

The editor crashes when the user attempts to reopen the Platform asset after setting the media file to the Windows platform. The editor also crashes when opening another asset (adding in a Media Pla ...

Crash in FPipelineFileCacheManager::RegisterPSOStats

UE - Rendering Architecture - Oct 25, 2024

The game can crash when one thread clears RunTimeToPSOUsage while another thread is expecting it to contain a PSO it is registering stats for. Thread A:  calls CacheGraphicsPSO() Thread B:  calls C ...

Crash when Enabling HDR in a Standalone Fullscreen Game

UE - Graphics Features - May 22, 2019

Enabling HDR with the r.HDR.EnableHDROutput command causes a crash in fullscreen standalone as well as packaged projects. This only happens with HDR monitors, following the same steps on a monitor t ...

Destroying a Character's CapsuleComponent while Use RVOAvoidance is enabled in the CharacterMovement component will crash the editor

UE - AI - Aug 27, 2015

Destroying a Character's CapsuleComponent while Use RVOAvoidance is enabled in the CharacterMovement component will crash the editor. Crash Report: [Link Removed] ...