Using Groovy to update a member property for Storage, individual cube properties aren't updating

Summary:

A Groovy script that builds a map to create a member in a hierarchy is not properly updating member properties

Content (please ensure you mask any confidential information):

I am using Groovy to create a new member for two cubes, TestCube and TestCube2. The member is created fine, but when I build out the member properties map, the properties are not accurately reflected. I've tried multiple combinations, but I cannot get the cubes to differentiate their storage properties, and they always inherit the value of the overarching data storage, even when the map explicitly calls for otherwise. Do I need to call a specific cube in the Groovy script to get the Storage properties to apply to specific cubes? Please see my code below. When the below code