Kendo UI Form MultiSelect Rendering Duplicate Selections

[Christopher]

I'm encountering an issue with the Kendo UI Form when using a MultiSelect widget. When I render a form that includes a single MultiSelect field bound to a value, the widget inexplicably displays two chips for that value.

Key Observations:

• This occurs with both single and multiple selections.

• The issue does not occur when the MultiSelect is used outside the context of a Kendo Form.

• I'm fairly certain this is related to how the form is configured or how the binding is set up.

• I've reduced my code to a minimal test case to replicate the issue.

• See attached screenshots for reference.

Question:

Has anyone else encountered this behavior when using a MultiSelect within a Kendo UI Form? Any tips on what might be causing the duplicate value chips?

Thank you in advance! :)

 public class TestViewModel
 {
     public List<string> SelectedItems { get; set; } = new List<string>();
     public List<string> AvailableItems { get; set; } = new List<string>();
 }

public class TestController : Controller
{
    public ActionResult Index()
    {
        var model = new TestViewModel
        {
            AvailableItems = ["Option A", "Option B", "Option C"],
            SelectedItems  = []
        };
        return View(model);
    }

    [HttpPost]
    public ActionResult Index(TestViewModel model)
    {
        model.AvailableItems = ["Option A", "Option B", "Option C"];
        return View(model);
    }
}

@(Html.Kendo().Form<TestViewModel>()
    .Name("testForm")
    .HtmlAttributes(new { method = "post", id = "testForm" })
    .Items(items =>
    {
        items.AddGroup()
             .Label("Demo")
             .Items(g =>
             {
                 g.Add().Field(m => m.SelectedItems)
                      .Label("Pick Items")
                      .Editor(e => e.MultiSelect()
                          .BindTo(Model.AvailableItems)
                          .Placeholder("Select…")
                      );
             });
    })
)