Unreal Engine Issues and Bug Tracker (UE-188716)

Description

This is a regression. Tested in //UE5/Release-5.1 CL23901901

The editor crashes after playing in editor when the level contains a niagara system with a scratch pad outputing audio spectrum.

Steps to Reproduce

Create or open any project
Create a New Empty Niagara System
1. Right click in the Content Browser then select a new Niagara System
2. Select New System From Selected Emitter(s)
3. Select Empty from the templates list then select the green +
4. Select Finish
In the Empty Niagara Overview Node select the + next to the Particle Update
Search for then select the Scratch Pad
In the Scratch Pad select the + in the Map Get node then choose Audio Spectrum
Drag off the Audio Spectrum output pin then create an Audio Spectrum node
Connect the Amplitude output pin of the Audio Spectrum node to the input pin of the Map Set node
Select Apply Scratch, save, and close the Niagara System
Add the Niagara System to the level
Play in Editor

Expected Results:
Level plays as usual

Actual Results:
The Editor Crashes with an Unhandled Exception

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

Callstack

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

UnrealEditor_Niagara!FNiagaraDataInterfaceProxySubmix::AddSubmixListener() [D:\build\++UE5\Sync\Engine\Plugins\FX\Niagara\Source\Niagara\Private\NiagaraDataInterfaceAudio.cpp:191]
UnrealEditor_Niagara!TBaseRawMethodDelegateInstance<0,FNiagaraDataInterfaceProxySubmix,void __cdecl(unsigned int),FDefaultTSDelegateUserPolicy>::ExecuteIfSafe() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:425]
UnrealEditor_Engine!TMulticastDelegate<void __cdecl(unsigned int),FDefaultTSDelegateUserPolicy>::Broadcast() [D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Delegates\DelegateSignatureImpl.inl:988]
UnrealEditor_Engine!FAudioDeviceManager::CreateNewDevice() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\AudioDeviceManager.cpp:752]
UnrealEditor_Engine!FAudioDeviceManager::RequestAudioDevice() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\AudioDeviceManager.cpp:477]
UnrealEditor_Engine!UGameViewportClient::Init() [D:\build\++UE5\Sync\Engine\Source\Runtime\Engine\Private\GameViewportClient.cpp:527]
UnrealEditor_UnrealEd!UEditorEngine::CreateInnerProcessPIEGameInstance() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:3075]
UnrealEditor_UnrealEd!UEditorEngine::OnLoginPIEComplete_Deferred() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1680]
UnrealEditor_UnrealEd!UEditorEngine::CreateNewPlayInEditorInstance() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1943]
UnrealEditor_UnrealEd!UEditorEngine::StartPlayInEditorSession() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:2956]
UnrealEditor_UnrealEd!UEditorEngine::StartQueuedPlaySessionRequestImpl() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1257]
UnrealEditor_UnrealEd!UEditorEngine::StartQueuedPlaySessionRequest() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1160]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1792]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:519]
UnrealEditor!FEngineLoop::Tick() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5812]
UnrealEditor!GuardedMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:188]
UnrealEditor!GuardedMainWrapper() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:107]
UnrealEditor!LaunchWindowsStartup() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:244]
UnrealEditor!WinMain() [D:\build\++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:284]
UnrealEditor!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

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Cannot Reproduce

Component	UE - Niagara
Affects Versions	5.2
Target Fix	5.3

Created	Jun 14, 2023
Resolved	Jul 27, 2023
Updated	Aug 7, 2023

UE-188716

Scratch Pad outputting Audio Spectrum triggers a crash

Scratch Pad outputting Audio Spectrum triggers a crash

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