Unreal Engine Issues and Bug Tracker (UE-44525)

Description

Crash when creating a Niagara Emitter

Another CrashReport: [Link Removed]

Not sure if regression because the process to enable Niagara in 4.15 seems to be different than in 4.16, and I'm not sure what that is. Can research if needed.

Steps to Reproduce

Have 4.16 build
enable Niagara (Engine/Config/BaseEngine.ini > find "EnableNiagara" and set it to "true". Save the file.)
open the editor to any project
right-click in the Content Browser > Niagara > Niagara Emitter
press Enter when it prompts you to name the asset

Result: Crash

Callstack

Access violation - code c0000005 (first/second chance not available)

UE4Editor_ShaderFormatVectorVM!ir_scalarize_visitor2::visit_enter() [ir_vm_scalarize_visitor.cpp:418]
UE4Editor_ShaderFormatVectorVM!ir_assignment::accept()
UE4Editor_ShaderFormatVectorVM!ir_function_signature::accept()
UE4Editor_ShaderFormatVectorVM!ir_function::accept()
UE4Editor_ShaderFormatVectorVM!visit_list_elements()
UE4Editor_ShaderFormatVectorVM!ir_scalarize_visitor2::run() [ir_vm_scalarize_visitor.cpp:584]
UE4Editor_ShaderFormatVectorVM!FVectorVMCodeBackend::GenerateCode() [vectorvmbackend.cpp:94]
UE4Editor_ShaderFormatVectorVM!FHlslCrossCompilerContext::Run()
UE4Editor_ShaderFormatVectorVM!CompileShader_VectorVM() [vectorvmshadercompiler.cpp:123]
UE4Editor_NiagaraEditor!FHlslNiagaraCompiler::CompileScript() [niagaracompiler.cpp:1085]
UE4Editor_NiagaraEditor!FNiagaraEditorModule::CompileScript() [niagaracompiler.cpp:568]
UE4Editor_NiagaraEditor!UNiagaraScriptFactoryNew::InitializeScript() [niagarascriptfactory.cpp:87]
UE4Editor_NiagaraEditor!UNiagaraEmitterFactoryNew::FactoryCreateNew() [niagaraemitterfactorynew.cpp:43]
UE4Editor_UnrealEd!UFactory::FactoryCreateNew() [factory.h:75]
UE4Editor_AssetTools!FAssetTools::CreateAsset() [assettools.cpp:430]
UE4Editor_ContentBrowser!SAssetView::CreateAssetFromTemporary() [sassetview.cpp:3437]
UE4Editor_ContentBrowser!SAssetView::AssetRenameCommit() [sassetview.cpp:3913]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,0,void __cdecl() [delegateinstancesimpl.h:434]
UE4Editor_ContentBrowser!SAssetViewItem::HandleNameCommitted() [assetviewwidgets.cpp:559]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetTileItem,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetTileItem,0,void __cdecl() [delegateinstancesimpl.h:434]
UE4Editor_Slate!TBaseDelegate<void,FText const & __ptr64,enum ETextCommit::Type>::ExecuteIfBound() [delegatesignatureimpl.inl:624]
UE4Editor_Slate!SInlineEditableTextBlock::OnTextBoxCommitted() [sinlineeditabletextblock.cpp:305]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SInlineEditableTextBlock,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SInlineEditableTextBlock,0,void __cdecl() [delegateinstancesimpl.h:434]
UE4Editor_Slate!TBaseDelegate<void,FText const & __ptr64,enum ETextCommit::Type>::ExecuteIfBound() [delegatesignatureimpl.inl:624]
UE4Editor_Slate!FSlateEditableTextLayout::HandleFocusLost() [slateeditabletextlayout.cpp:694]
UE4Editor_Slate!FSlateApplication::SetUserFocus() [slateapplication.cpp:2739]
UE4Editor_Slate!FSlateApplication::SetUserFocus() [slateapplication.cpp:2632]
UE4Editor_Slate!FSlateApplication::RoutePointerDownEvent() [slateapplication.cpp:4981]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonDownEvent() [slateapplication.cpp:4898]
UE4Editor_Slate!FSlateApplication::OnMouseDown() [slateapplication.cpp:4816]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1712]
UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2127]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:867]
UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:714]
user32!UserCallWinProcCheckWow()
user32!DispatchMessageWorker()
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:980]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3058]
UE4Editor!GuardedMain() [launch.cpp:166]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:264]
kernel32!BaseThreadInitThunk()
ntdll!RtlUserThreadStart()

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Cannot Reproduce

Component	UE - Graphics Features
Affects Versions	4.16, 4.17

Created	Apr 28, 2017
Resolved	Dec 21, 2017
Updated	Jul 14, 2021