The "Option Text" text is not displayed in the component that uses FluentComboBox

[DomenicoFormoso]

This code that worked well with version 4.11.3 does not work well with version 4.11.4.
The "Option Text" text is not displayed even though the select works fine

It is called like this:
<ComboAnno Selezionato="@annoS" Width="120px" Etichetta="Anno" AnnoCambiato="OnAnnoCambiato"></ComboAnno>

<FluentInputLabel Orientation="Orientation.Horizontal">@Etichetta</FluentInputLabel>
<FluentCombobox Items=@stringOptions
                OptionText="@(i => i.Text)"
                OptionValue="@(i => i.Value)"
                OptionSelected="@(i => i.Selected)"
                Height="200px"
                Width="@Width"
                @bind-SelectedOption=@elementoSelezionato
                @bind-SelectedOption:after=@OnAnnoCambiato>
</FluentCombobox>

@code {

    [Parameter] public string? Selezionato { get; set; }
    [Parameter] public string? Etichetta { get; set; }
    [Parameter] public string? Width { get; set; }
    [Parameter] public EventCallback<string> AnnoCambiato { get; set; }

    private Option<string> elementoSelezionato = default!;

    List<Option<string>> stringOptions = new()
    {
            { new Option<string> { Value = "2025", Text = "2025" } },
            { new Option<string> { Value = "2024", Text = "2024" } },
            { new Option<string> { Value = "2023", Text = "2023" } },
            { new Option<string> { Value = "2022", Text = "2022" } },
            { new Option<string> { Value = "2021", Text = "2021" } },
            { new Option<string> { Value = "2020", Text = "2020" } }
    };


    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            elementoSelezionato = stringOptions.FirstOrDefault(x => x.Value == Selezionato) ?? stringOptions.First();
        }
        StateHasChanged();
        await base.OnAfterRenderAsync(firstRender);
    }


    private async Task OnAnnoCambiato()
    {
        if (elementoSelezionato != null)
        {
            await AnnoCambiato.InvokeAsync(elementoSelezionato.Value);
        }
    }
}