I have a probe installed on one of my DC's and set the probe to do a full scan on a specific OU that I am using for testing. I know that there are users there, but when the scan is complete the VSA doesnt show any users in the users tab under policy. I am trying to get ad authentication to work so that I can deploy this to the rest of my team to test.
It sounds as though you are using a preview filter on the installation of the domain probe to only scan a specific organizational unit within the domain, is that accurate?
If so, it's most likely the syntax/formatting of the filter string that's causing no users to show up.