SelectedText is not being populated when using SelectedValue

When setting the selected items using SelectedValue the display text is not being updated. If I expand the dropdown I see the checkboxes selected but the displayed text is empty.

If I select a node it will update the displayed text but until then it is empty. Am i missing something?

Version 2015.1.401.40

<telerik:RadDropDownTree 
    runat="server" 
    ID="rddtTo" 
    CheckBoxes="SingleCheck" 
    Width="732px"
    DefaultMessage="Please select" 
    DataFieldID="ID" 
    DataFieldParentID="ParentID"
    DataValueField="ID" 
    DataTextField="NodeName"
    OnDataBound="rddtTo_DataBound">
</telerik:RadDropDownTree>  

Protected Sub rddtTo_DataBound(sender As Object, e As System.EventArgs)
   DirectCast(sender, Telerik.Web.UI.RadDropDownTree).ExpandAllDropDownNodes()
   rddtTo.SelectedValue = hdnSelectedValues.Value
End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
   If Not Page.IsPostBack Then
      Using p_Db As New mlDB("Messages_Template_List", -1)
         p_Db.SQL = "Messages_Groups_Select"
         rddtTo.DataSource = p_Db.GetDataTable
         rddtTo.DataBind()
      End Using
   End If
End Sub