Invoke-RDMParentSession --> Access denied

Hello,

I want to move a session as a child of another session. In any case, I receive an "Access denied".

For the purpose of a demo, I've created following Powershell script. It first creates a parent and a child session and then tries to move the child session under the parent session.

$timestamp = Get-Date -Format yyyy-MM-dd_HH-mm-ss

$parent = New-RDMSession -Name "parent $timestamp" -ConnectionType "SSHShell" -Host "parent"
Set-RDMSession $parent -Refresh
Write-Host "Parent:"
$parent | ft -Property Name,Group,ConnectionType
Write-Host ""

$child = New-RDMSession -Name "child $timestamp" -ConnectionType "WebBrowser" -Host "child"
Set-RDMSession $child -Refresh
Write-Host "Child:"
$child | ft -Property Name,Group,ConnectionType
Write-Host ""

Write-Host "Move child session under parent session:"
Invoke-RDMParentSession -ParentSession $parent -Session $child -Refresh

Output:

Parent:

Name                       Group ConnectionType
----                       ----- --------------
parent 2023-11-22_08-48-58             SSHShell


Child:                                                                                                                  
Name                      Group ConnectionType
----                      ----- --------------
child 2023-11-22_08-48-58           WebBrowser


Move child session under parent session:
Invoke-RDMParentSession: C:\Users\tom\Powershell\cmdb_scripts\ad_hoc_scripts\rdm_move_session.ps1:16
Line |
  16 |  Invoke-RDMParentSession -ParentSession $parent -Session $child -Refre …
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | Access denied

In RDM this results to:



I really doubt this is a permission problem, since I'm able to create the sessions. And even move the child under the parrent (by drag and drop) within RDM:



I'm using Powershell module Devolutions.PowerShell version 2023.3.1