When I click on DropDown component, the resulting popup does not close when I choose an item. It was working in 6.6.4. The only difference I can see between my code and the demo is the use of RadzenRequiredValidator:
<div>
<RadzenLabel Text="Material" Component="DropDownMaterial" />
<RadzenDropDown @bind-Value=@trayJob.MaterialOption Data=@materialOptions Style="width: 100%;" Name="DropDownMaterial" />
</div>
<RadzenRequiredValidator Component="DropDownMaterial" Text="Material selection is required" Style="position: relative" />