Drowdown Filtering not working

The SearchText never returns an item from the dropdown... I type in 1 letter and the list goes away. I must be a missing a setting but I don't know what it is?

<RadzenDropDown @bind-Value="data.Category" Data="@_categoryData" ValueProperty="Text" Style="width:100%;font-size: 11px;" Change="@(args => CategoryChange(data))"
FilterCaseSensitivity="FilterCaseSensitivity.CaseInsensitive" FilterOperator="StringFilterOperator.StartsWith" AllowFiltering="true" >

You might need to set TextProperty as well.

That was it... Thanks!