GAS: FActiveGameplayCueContainer::RemoveCue crash while iterating removals when consecutive Cue tags are conditionally added and the conditional effects removed in ascending order

When removing gameplay effects by tag, if the tag that is being removed has other tags that are dependent on it in a cyclical way an "array out of bounds ' error can be triggered.

Create a Gameplay Cue Notify Actor
Create a Gameplay Effect that triggers the previously created Gameplay Cue Notify Actor

Create a second Gameplay Cue Notify Actor
Create a second Gameplay Effect that triggers the previously created second Gameplay Cue Notify Actor and grants a new Gameplay Tag

Create a third Gameplay Effect that triggers the previously created first Gameplay Cue Notify Actor and requires the Gameplay Cue Tag that is linked to the second Gameplay Cue Notify Actor

Apply the first created Gameplay Effect to an Actor
Apply the second created Gameplay Effect to the same Actor
Apply the third created Gameplay Effect to the same Actor

Call 'RemoveActiveEffectswithGrantedTags' using the Tag granted by the second Gameplay Effect.

Observe an array index out of bounds Exception and corresponding Editor crash

Script Stack (2 frames) :
/Game/ThirdPerson/Blueprints/BP_ThirdPersonCharacter.BP_ThirdPersonCharacter_C.ExecuteUbergraph_BP_ThirdPersonCharacter
/Game/ThirdPerson/Blueprints/BP_ThirdPersonCharacter.BP_ThirdPersonCharacter_C.ReceiveBeginPlay

[2025.11.04-23.08.36:120][ 87]LogWindows: Error: appError called: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 1095]
Array index out of bounds: 1 into an array of size 1

[2025.11.04-23.08.36:120][ 87]LogWindows: Windows GetLastError: The operation completed successfully. (0)
[2025.11.04-23.08.39:719][ 87]LogWindows: Could not start crash report client using ../../../../UE/UE_MAIN/UnrealEngine/Engine/Binaries/Win64/CrashReportClientEditor-Win64-Debug.exe
[2025.11.04-23.08.39:719][ 87]LogMemory: Platform Memory Stats for WindowsEditor
[2025.11.04-23.08.39:719][ 87]LogMemory: Process Physical Memory: 4456.12 MB used, 4502.67 MB peak
[2025.11.04-23.08.39:719][ 87]LogMemory: Process Virtual Memory: 7776.68 MB used, 8695.65 MB peak
[2025.11.04-23.08.39:719][ 87]LogMemory: Physical Memory: 49611.96 MB used, 79048.62 MB free, 128660.59 MB total
[2025.11.04-23.08.39:719][ 87]LogMemory: Virtual Memory: 59573.19 MB used, 77279.39 MB free, 136852.59 MB total
[2025.11.04-23.08.39:719][ 87]Message dialog closed, result: Ok, title: The UE-CueCrash Editor has crashed and will close, text: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 1095]
Array index out of bounds: 1 into an array of size 1

[2025.11.04-23.08.39:719][ 87]LogWindows: Error: === Critical error: ===
[2025.11.04-23.08.39:719][ 87]LogWindows: Error:
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 1095]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: Array index out of bounds: 1 into an array of size 1
[2025.11.04-23.08.39:719][ 87]LogWindows: Error:
[2025.11.04-23.08.39:719][ 87]LogWindows: Error:
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6fb7ce8 CueCrashEditor-Core.dll!FDebug::CheckVerifyFailedImpl2() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:759]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9ccfea7e8 CueCrashEditor-GameplayAbilities.dll!FActiveGameplayCueContainer::RemoveCue() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\GameplayCueInterface.cpp:377]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9cce6ad70 CueCrashEditor-GameplayAbilities.dll!UAbilitySystemComponent::RemoveGameplayCue_Internal() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\AbilitySystemComponent.cpp:1620]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9cce6adea CueCrashEditor-GameplayAbilities.dll!UAbilitySystemComponent::RemoveGameplayCue_MinimalReplication() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\AbilitySystemComponent.cpp:1608]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9ccfae3c2 CueCrashEditor-GameplayAbilities.dll!FActiveGameplayEffectsContainer::RemoveActiveGameplayEffectGrantedTagsAndModifiers() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\GameplayEffect.cpp:4921]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9ccf96998 CueCrashEditor-GameplayAbilities.dll!FActiveGameplayEffectsContainer::InternalOnActiveGameplayEffectRemoved() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\GameplayEffect.cpp:4841]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9ccf972ad CueCrashEditor-GameplayAbilities.dll!FActiveGameplayEffectsContainer::InternalRemoveActiveGameplayEffect() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\GameplayEffect.cpp:4772]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9ccfadd48 CueCrashEditor-GameplayAbilities.dll!FActiveGameplayEffectsContainer::RemoveActiveEffects() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\GameplayEffect.cpp:5597]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9cce698d0 CueCrashEditor-GameplayAbilities.dll!UAbilitySystemComponent::RemoveActiveEffectsWithGrantedTags() [D:\UE\UE_MAIN\UnrealEngine\Engine\Plugins\Runtime\GameplayAbilities\Source\GameplayAbilities\Private\AbilitySystemComponent.cpp:1810]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9cce9d20c CueCrashEditor-GameplayAbilities.dll!UAbilitySystemComponent::execRemoveActiveEffectsWithGrantedTags() [D:\Unreal_Projects\CueCrash\Intermediate\Build\Win64\CueCrashEditor\Inc\GameplayAbilities\UHT\AbilitySystemComponent.gen.cpp:3972]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6211dfa CueCrashEditor-CoreUObject.dll!UFunction::Invoke() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:7598]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e652861c CueCrashEditor-CoreUObject.dll!UObject::CallFunction() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1158]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e653d765 CueCrashEditor-CoreUObject.dll!UObject::ProcessContextOpcode() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:3141]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e656c38d CueCrashEditor-CoreUObject.dll!UObject::execLet() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:2878]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6540526 CueCrashEditor-CoreUObject.dll!ProcessLocalScriptFunction() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1225]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6514b15 CueCrashEditor-CoreUObject.dll!ProcessScriptFunction<void (__cdecl*)(UObject *,FFrame &,void *)>() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1052]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e651e5fa CueCrashEditor-CoreUObject.dll!`ProcessLocalFunction'::`2'::<lambda_1>::operator()() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1303]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6540237 CueCrashEditor-CoreUObject.dll!ProcessLocalFunction() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1322]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6540526 CueCrashEditor-CoreUObject.dll!ProcessLocalScriptFunction() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1225]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e653fedf CueCrashEditor-CoreUObject.dll!UObject::ProcessInternal() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:1354]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e6211dfa CueCrashEditor-CoreUObject.dll!UFunction::Invoke() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp:7598]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff9e653e971 CueCrashEditor-CoreUObject.dll!UObject::ProcessEvent() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp:2194]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa008ca46d CueCrashEditor-Engine.dll!AActor::ProcessEvent() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\Actor.cpp:1484]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa0089abd2 CueCrashEditor-Engine.dll!AActor::BeginPlay() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\Actor.cpp:4801]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa01d56dd2 CueCrashEditor-Engine.dll!APawn::BeginPlay() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\Pawn.cpp:183]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa008a4423 CueCrashEditor-Engine.dll!AActor::DispatchBeginPlay() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\Actor.cpp:4737]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa02ad2db4 CueCrashEditor-Engine.dll!AWorldSettings::NotifyBeginPlay() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\WorldSettings.cpp:371]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa0156a631 CueCrashEditor-Engine.dll!AGameStateBase::HandleBeginPlay() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\GameStateBase.cpp:210]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa02826808 CueCrashEditor-Engine.dll!UWorld::BeginPlay() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\World.cpp:6102]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa015062a1 CueCrashEditor-Engine.dll!UGameInstance::StartPlayInEditorGameInstance() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Engine\Private\GameInstance.cpp:567]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06adca7f CueCrashEditor-UnrealEd.dll!UEditorEngine::CreateInnerProcessPIEGameInstance() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:3187]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06b045dd CueCrashEditor-UnrealEd.dll!UEditorEngine::OnLoginPIEComplete_Deferred() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1629]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06add7df CueCrashEditor-UnrealEd.dll!UEditorEngine::CreateNewPlayInEditorInstance() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1892]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06b1bae4 CueCrashEditor-UnrealEd.dll!UEditorEngine::StartPlayInEditorSession() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:2915]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06b1f961 CueCrashEditor-UnrealEd.dll!UEditorEngine::StartQueuedPlaySessionRequestImpl() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1206]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06b1f01e CueCrashEditor-UnrealEd.dll!UEditorEngine::StartQueuedPlaySessionRequest() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1107]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa0649bfe9 CueCrashEditor-UnrealEd.dll!UEditorEngine::Tick() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:2058]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffa06f9cf46 CueCrashEditor-UnrealEd.dll!UUnrealEdEngine::Tick() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:537]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff6fb464b14 CueCrashEditor.exe!FEngineLoop::Tick() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5859]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff6fb48032e CueCrashEditor.exe!GuardedMain() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Launch\Private\Launch.cpp:190]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff6fb48043a CueCrashEditor.exe!GuardedMainWrapper() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:123]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff6fb483cf0 CueCrashEditor.exe!LaunchWindowsStartup() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:277]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff6fb4952e4 CueCrashEditor.exe!WinMain() [D:\UE\UE_MAIN\UnrealEngine\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:334]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ff6fb4986aa CueCrashEditor.exe!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
[2025.11.04-23.08.39:719][ 87]LogWindows: Error: [Callstack] 0x00007ffbcf00e8d7 KERNEL32.DLL!UnknownFunction []
[2025.11.04-23.08.39:719][ 87]LogWindows: Error:
[2025.11.04-23.08.39:723][ 87]LogExit: Executing StaticShutdownAfterError
[2025.11.04-23.08.39:726][ 87]LogWindows: FPlatformMisc::RequestExit(1, LaunchWindowsStartup.ExceptionHandler)
[2025.11.04-23.08.39:726][ 87]LogWindows: FPlatformMisc::RequestExitWithStatus(1, 3, LaunchWindowsStartup.ExceptionHandler)
[2025.11.04-23.08.39:726][ 87]LogCore: Engine exit requested (reason: Win RequestExit)