Transforming Parent across same node type

Summary:

I have a scenario where I need to transform a parent being sent during a subscription request, but the source (Primary Geo Hierarchy) & target (Alt Geo Hierarchy) viewpoints both share the same node type.

Content (please ensure you mask any confidential information):

I know we can return the value <unknown> in the node type converter and use the calculate and store logic on the Parent node type property, but it is not behaving as I expected. It is still taking the source node parent name, and when it tries to insert the new node to the target (Alt Geo). It gives an error that the parent doesn't exist in the structure.