The showdebug abilitysystem command crashes editor when the target is a child actor

UE - Gameplay - Dec 2, 2021

An actor with an AbilitySystemComponent that is spawned by a ChildActorComponent will have a null AbilityActorInfo. This leads to a crash in the ASC when GetDebugTarget attempts to access AbilityAct ...

Editor crashes when re-opening a project that had previously successfully applied a Live Coding patch

UE - Foundation - Cpp Tools - Live Coding - Apr 9, 2019

The Editor will crash while opening a project that had previously successfully had a Live Coding patch applied, and then was closed. The `LiveCodingConsole.exe` process continues to run after both t ...

[CrashReport] UE4Editor_UnrealEd!FLightmassExporter::SetVolumetricLightmapSettings()

UE - Graphics Features - Sep 28, 2017

This is a trending crash coming out of the 4.18 Previews. Users have not provided any description of their actions when the crash occurred. Source Context 1857 const FVector ImportanceExt ...

[AI] Crash in UGameplayDebuggerLocalController::OnDebugDraw

UE - AI - Debugging - Apr 27, 2024

UGameplayDebuggerLocalController::OnDebugDraw crashed with a dereferenced nullptr for CachedReplicator. ...

[CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::Get() [weakobjectptr.cpp:81]

UE - Simulation - Physics - Nov 2, 2017

This is a trending crash coming out of the 4.18 release. It may be a regression. User Descriptionscreated a physics asset and tried to open it... Source Context 66 if (!SerialNumbersMatc ...

[CrashReport] UE4Editor_WorldBrowser!FMulticastDelegateBase<FWeakObjectPtr>::RemoveAll() [multicastdelegatebase.h:81]

UE - World Creation - Worldbuilding Tools - World Composition - Nov 2, 2017

This is a trending crash coming out of 4.18 and may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Source Context 72 /** 73 ...

[AI] SmartObject with Precondition in a persistent collection crashes editor when exiting PIE

UE - AI - SmartObject - Sep 26, 2023

Adding the Precondition to the SmartObject caused an assertion when it was part of a persistent collection. The precondition needs to be able to pass its Activate method to cause the assert. This b ...

Crash may occur if Actor is selected on the outliner and then discarded

UE - Editor - Workflow Systems - Jul 1, 2022

Discarding Actor while it is selected on the outliner may cause a crash. This may be caused by operations from C++ not being listed in the UNDO list, which may refer to unreferenced objects during ...

Crash when adding foliage instances to unloaded IFA

UE - World Creation - Worldbuilding Tools - Foliage - Aug 31, 2023

Ran into a crash when trying to programmatically add foliage to a large WP level with some unloaded IFAs.  ...