UDT Active Directory Polling with least privilege account

Hi,

I'm trying to get UDT working to pull my AD user logons with a least privilege account. I've set the permissions based on the following URL https://documentation.solarwinds.com/en/success_center/udt/content/udt-define-credentials-for-polling-across-domains.htm however, in the UDTJobs logs I see the following error.

 Exception while executing in impersonation contex for user 'MYSERVICEACCOUNT. Details: Requested registry access is not allowed. 

Any idea what is causing the registry access error?

Thanks

Mike