[DNN 7.0.6] I am trying to use the TermsSelector control in my module to categorize content. The client UI appears to work as expected (can check checkboxes, and terms appear in the box). However, when the page is posted back, the selected terms are not available. I created a completely new module, with only one user control and 3 controls - TermsSelector, Button, and a Label - and it works fine there. So I copied this page to my module, and found that the selected terns are available on every other postback, not every time. The original module was not developed for DNN7, only being modified to work with DNN7. I probably need to change some settings on the module - I am having a really hard time figuring this one out. Thanks in advance. 

 protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                if (!IsPostBack)
                {
                    tsTerms.PortalId = ModuleContext.PortalId;

                    tsTerms.IncludeTags = true;
                    tsTerms.IncludeSystemVocabularies = false;

                    ModuleInfo module = (new ModuleController()).GetModule(ModuleId, TabId, false);
                    tsTerms.Terms = module.Terms;
                    tsTerms.DataBind();
                }
            }
            catch (Exception exc) //Module failed to load
            {
                Exceptions.ProcessModuleLoadException(this, exc);
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Label1.Text = "";
            foreach (DotNetNuke.Entities.Content.Taxonomy.Term t in tsTerms.Terms)
            {
                Label1.Text += t.Name + ", ";
            }
        }
    }