Incorrect Json Deserialization for Subsequent Operations

I also added the header declaration to the topic. Thanks for reminding.

UFUNCTION(BlueprintCallable, Category = "InJson", CustomThunk,
	meta = (CustomStructureParam = "StructToFill", DisplayName = "JsonStringToStruct"))
static bool JsonStringToStruct(const FString& JsonString, UStruct*& StructToFill);