It was 1. Delete this line, it didint help, anywhere crash.
Crash mesage
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_MyProject_4074!UMyBlueprintFunctionLibrary::Spawn() [d:\sasha\myprojectszxc\myproject\source\myproject\myblueprintfunctionlibrary.cpp:28]
UE4Editor_MyProject_4074!UMyBlueprintFunctionLibrary::execSpawn() [d:\sasha\myprojectszxc\myproject\source\myproject\myblueprintfunctionlibrary.h:17]
UE4Editor_CoreUObject!UFunction::Invoke() [e:\ue4git\unrealengine\engine\source\runtime\coreuobject\private\uobject\class.cpp:4198]
UE4Editor_CoreUObject!UObject::CallFunction() [e:\ue4git\unrealengine\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:484]
UE4Editor_CoreUObject!UObject::ProcessContextOpcode() [e:\ue4git\unrealengine\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1755]
UE4Editor_CoreUObject!UObject::ProcessInternal() [e:\ue4git\unrealengine\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:698]
UE4Editor_CoreUObject!UFunction::Invoke() [e:\ue4git\unrealengine\engine\source\runtime\coreuobject\private\uobject\class.cpp:4198]
UE4Editor_CoreUObject!UObject::ProcessEvent() [e:\ue4git\unrealengine\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1050]
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll