Editor crashes when child scene is removed from mesh_collision scene and is played.

[r41k0u]

Deleting a child scene which has external models ( scenes except camera and light ) and then trying to play the scene gives the following exception:

this was 0xFFFFFFFFFFFFFFFF

Stack Trace :

	at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\memory(1271)
Editor.exe!std::shared_ptr<MaterialResourceFile>::operator-><MaterialResourceFile,0>() Line 1700
	at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\memory(1700)
Editor.exe!RenderableComponent::getJSON() Line 142
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\framework\components\visual\model\renderable_component.cpp(142)
Editor.exe!Entity::getJSON() Line 30
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\framework\entity.cpp(30)
Editor.exe!Scene::getJSON() Line 315
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\framework\scene.cpp(315)
Editor.exe!Scene::getJSON() Line 321
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\framework\scene.cpp(321)
Editor.exe!SceneLoader::saveSceneAtFile(Scene * scene, const std::string & filePath) Line 118
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\framework\scene_loader.cpp(118)
Editor.exe!SceneLoader::saveScene(Scene * scene) Line 111
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\framework\scene_loader.cpp(111)
Editor.exe!EditorSystem::saveAll(const Event * event) Line 851
	at C:\Users\pragy\Documents\Rootex\Rootex\editor\editor_system.cpp(851)
Editor.exe!EventBinder<EditorSystem>::bind::__l2::<lambda>(const Event * e) Line 35
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\core\event_manager.h(35)
Editor.exe!std::invoke<std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *> <lambda>(const Event *) &,Event const *>(EventBinder<EditorSystem>::bind::__l2::std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *> <lambda>(const Event *) & _Obj, const Event * && _Arg1) Line 1595
	at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\type_traits(1595)
Editor.exe!std::_Invoker_ret<std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *>,0>::_Call<std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *> <lambda>(const Event *) &,Event const *>(EventBinder<EditorSystem>::bind::__l2::std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *> <lambda>(const Event *) & _Func, const Event * && <_Vals_0>) Line 753
	at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\functional(753)
Editor.exe!std::_Func_impl_no_alloc<std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *> <lambda>(const Event *),std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *>,Event const *>::_Do_call(const Event * && <_Args_0>) Line 920
	at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\functional(920)
Editor.exe!std::_Func_class<std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *>,Event const *>::operator()(const Event * <_Args_0>) Line 968
	at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\functional(968)
Editor.exe!EventBinder<EditorSystem>::handle(const Event & event) Line 60
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\core\event_manager.h(60)
Editor.exe!EventManager::call(const Event & event) Line 51
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\core\event_manager.cpp(51)
Editor.exe!EventManager::call(const std::string & eventType, const std::variant<bool,int,char,float,std::string,std::vector<std::string,std::allocator<std::string>>,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix,std::vector<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>,std::allocator<std::variant<bool,int,char,float,std::string,DirectX::SimpleMath::Vector2,DirectX::SimpleMath::Vector3,DirectX::SimpleMath::Vector4,DirectX::SimpleMath::Matrix>>>,Scene *,Entity *,Hit *> & data) Line 65
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\core\event_manager.cpp(65)
Editor.exe!ToolbarDock::draw(float deltaMilliseconds) Line 72
	at C:\Users\pragy\Documents\Rootex\Rootex\editor\gui\toolbar_dock.cpp(72)
Editor.exe!EditorSystem::update(float deltaMilliseconds) Line 187
	at C:\Users\pragy\Documents\Rootex\Rootex\editor\editor_system.cpp(187)
Editor.exe!Application::run() Line 156
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\app\application.cpp(156)
Editor.exe!main() Line 10
	at C:\Users\pragy\Documents\Rootex\Rootex\rootex\main\main.cpp(10)
Editor.exe!invoke_main() Line 79
	at d:\agent\_work\4\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl(79)
Editor.exe!__scrt_common_main_seh() Line 288
	at d:\agent\_work\4\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl(288)
Editor.exe!__scrt_common_main() Line 331
	at d:\agent\_work\4\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl(331)
Editor.exe!mainCRTStartup(void * __formal) Line 17
	at d:\agent\_work\4\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp(17)
kernel32.dll!00007ffa93546ab0()
ntdll.dll!00007ffa94bd1dbb()```