Creating a nested folder structure with Powershell

I'm in the process of automating our RDM SQL Database by fetching data from an Oracle DB inventory and transforming it into RDM Session objects.

The issue I run into is create subfolders. Let's say I want to create a folder for each customer and then a subfolder for their branch offices, so:

- ACME
---- Amsterdam
---- Brussels
---- Berlin
---- London
---- Paris

If I do

new-rdmsession -Type "Group" -Name "ACME"

I will get my folder on the first level alright. But on the second level, things go wrong. According to old documentation (your cmdlets are great but not very well documented), one can use

new-rdmsession -Type "Group" -Name "ACME\Amsterdam"

The interesting result is that I then get the following:

- ACME
---- ACME\Amsterdam
---- ACME\Brussels
---- ACME\Berlin
---- ACME\London
---- ACME\Paris

This happens independent of ACME already existing or not. It's a step in the right direction, but not entirely right. Am I doing something wrong or is this a bug? Using RDM Enterprise 2022.2.20.0 x64 by the way.

Thank you in advance.