ULuaState::ToFProperty causing crash with Map properties

[Jemko0]

ULuaState::ToFProperty(void* Buffer, FProperty * Property, FLuaValue Value, bool& bSuccess, int32 Index)
Line: 2421 - 2440

#if ENGINE_MAJOR_VERSION > 4 || ENGINE_MINOR_VERSION >= 25
	if (FMapProperty* MapProperty = CastField<FMapProperty>(Property))
#else
	if (UMapProperty* MapProperty = Cast<UMapProperty>(Property))
#endif
	{
		FScriptMapHelper_InContainer Helper(MapProperty, Buffer, Index);
		Helper.EmptyValues();
		TArray<FLuaValue> TableKeys = ULuaBlueprintFunctionLibrary::LuaTableGetKeys(Value);
		for (FLuaValue TableKey : TableKeys)
		{
			int32 NewIndex = Helper.AddUninitializedValue();
			uint8* KeyBuffer = Helper.GetKeyPtr(NewIndex);
			uint8* ValueBuffer = Helper.GetValuePtr(NewIndex);
			bool bTableItemSuccess = false;
			ToProperty(KeyBuffer, Helper.GetKeyProperty(), TableKey, bTableItemSuccess, 0);
			ToProperty(ValueBuffer, Helper.GetValueProperty(), TableKey, bTableItemSuccess, 0); <-- crash?
		}
		return;
	}

this crash occurs when a cpp function has an argument of type struct and the struct has a member of type TMap while providing a table as an argument when calling from lua like so:

local o = GetSomeObject()

local t = {["key"] = "value"}
o.CPPCrashMethod(t)

cpp:

USTRUCT(BlueprintType)
struct FTestLuaCrash
{
    GENERATED_BODY()

public:
    TMap<FString, FString> map;
};

//method
void USomeObject::CPPCrashMethod(FTestLuaCrash inStruct)
{
    //should crash by calling this
    return;
}

callstack:

VCRUNTIME140

UnrealEditor_LuaMachine!FString::operator=() [D:\UE_5.6\Engine\Source\Runtime\Core\Public\Containers\UnrealString.h.inl:76]

UnrealEditor_LuaMachine!ULuaState::ToFProperty() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:2294]

UnrealEditor_LuaMachine!ULuaState::ToFProperty() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:2436]

UnrealEditor_LuaMachine!ULuaState::LuaTableToStruct() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:2476]

UnrealEditor_LuaMachine!ULuaState::ToFProperty() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:2400]

UnrealEditor_LuaMachine!ULuaState::MetaTableFunction__rawcall() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:1284]

UnrealEditor_LuaMachine!luaD_precall()

UnrealEditor_LuaMachine!luaV_execute()

UnrealEditor_LuaMachine!luaD_callnoyield()

UnrealEditor_LuaMachine!luaD_rawrunprotected()

UnrealEditor_LuaMachine!luaD_pcall()

UnrealEditor_LuaMachine!lua_pcallk()

UnrealEditor_LuaMachine!ULuaState::RunCode() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:396]

UnrealEditor_LuaMachine!ULuaState::RunFile() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaState.cpp:364]

UnrealEditor_LuaMachine!ULuaBlueprintFunctionLibrary::LuaRunNonContentFile() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Source\LuaMachine\Private\LuaBlueprintFunctionLibrary.cpp:434]

UnrealEditor_LuaMachine!ULuaBlueprintFunctionLibrary::execLuaRunNonContentFile() [C:\Users\User\Documents\Unreal Projects\UEPROJECT\Plugins\LuaMachine\Intermediate\Build\Win64\UnrealEditor\Inc\LuaMachine\UHT\LuaBlueprintFunctionLibrary.gen.cpp:3491]

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_CoreUObject

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_UnrealEd

UnrealEditor_UnrealEd

UnrealEditor

UnrealEditor

UnrealEditor

UnrealEditor

UnrealEditor

UnrealEditor

kernel32

ntdll