Ghost Nodes in ADVTreeView

I have a ADVtreeview that shows directories and files on the BOX cloud server. I am using a TCloudAdvTreeViewAdapter to populate the ADVTreeView. The problem is if I delete ALL the file nodes (and corresponding files on FTP server) in a directory, when I return and click on the "empty" directory it shows all the files just deleted from the directory as well as any added during the period of deletion. I use: TreeView1.SelectedNodes[i].Destroy; or Free but the files just deleted keep returning when clicking on the now "empty" directory.

Connecting to BOX Cloud Sever not a FTP Server as stated previously.