Copy-ZertoVPG internal server error

PS C:\Users\Administrator> Copy-ZertoVpg -SourceVpgName xx -NewVpgName xy -VMs xy

Invoke-ZertoRestRequest : The remote server returned an error: (500) Internal Server Error. At C:\Program Files\WindowsPowerShell\Modules\ZertoApiWrapper\1.5.3\ZertoApiWrapper.psm1:6035 char:13

Invoke-ZertoRestRequest -uri $baseUri -method "POST"


+ CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Write-Error], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Invoke-ZertoRestRequest

Expected Behavior

i have a second vm like the first one, only the vm is different. i was expecting a new vpg with one vm and the same settings

Current Behavior

nothing happening

Possible Solution

Steps to Reproduce (for bugs)

Connect-ZertoServer (working) get-zertovpg (working) Copy-ZertoVpg -SourceVpgName xx -NewVpgName xy -VMs xy4.

Your Environment

Module version used: 1.5.3
Operating System and PowerShell version: windows 2019 1809, 5.1.17763.1490
Zerto Virtual Manager Version: 8.5 U2

ZertoPublic / ZertoApiWrapper