Trouble Importing Active Directory Users

Trouble Importing Active Directory Users

I am having trouble using the AD import function in the ServiceDesk. Basically, when choosing the "Import" link, it does not show all of the OU's. In this example, I have an "ASG" OU, which contains an OU for each branch, then within each branch OU I have an OU for each department. In the Service Desk, I can only see the root OU. I can't drill down to see all the OU's listed under the root. I have pasted a screenshot of our Active Directory, showing the OU structure as well as what I see in the ServiceDesk Application. Any information on this would be helpful.
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