SfCombobox suggestionbox white screen

[EMRTeam]

Hello,
I am using SfCombobox and facing an issue while showing items in dropdown.
list of items assign to sfcombobox but control is not showing data and showing only white area in dropdown.

.net maui version: 9.0
SfCombobox version: 28.2.11
iPadOs version: 18.2

`<sfComboBox:SfComboBox
x:Name="cbPrefLang"
DisplayMemberPath="pickListValue"
DropDownItemTextColor="Orange"
SelectionChanged="cbPrefLang_SelectionChanged"
Style="{StaticResource sfComboBoxStyle}"
TextColor="Red" />

var sfComboBoxStyle = new Style(typeof(SfComboBox))
{
Setters =
{
new Setter { Property = SfComboBox.IsEditableProperty, Value = true },
new Setter { Property = SfComboBox.TextSearchModeProperty, Value = ComboBoxTextSearchMode.Contains },
new Setter { Property = SfComboBox.HighlightedTextColorProperty, Value = Color.FromArgb("#333333") },
new Setter { Property = SfComboBox.TextColorProperty, Value = Color.FromArgb("#333333") },
new Setter { Property = SfComboBox.DropDownBackgroundProperty, Value = Colors.Transparent },
new Setter { Property = SfComboBox.ShowSuggestionsOnFocusProperty, Value = true },
new Setter { Property = SfComboBox.HeightRequestProperty, Value = ResponsiveLogicConverters.sfComboBoxStyle_HeightRequest() },
new Setter { Property = SfComboBox.DropDownPlacementProperty, Value = DropDownPlacement.Auto },
new Setter { Property=SfComboBox.FontSizeProperty, Value= ResponsiveLogicConverters.sfComboBoxStyle_NoEdit_FontSize() },
new Setter { Property=SfComboBox.DropDownItemFontSizeProperty, Value= ResponsiveLogicConverters.sfComboBoxStyle_NoEdit_DropDownItemFontSize() },
new Setter { Property = SfComboBox.FontFamilyProperty, Value = "RobotoMedium" },
new Setter { Property = SfComboBox.DropDownItemFontFamilyProperty, Value = "Roboto" },
new Setter
{
Property = SfComboBox.NoResultsFoundTemplateProperty,
Value = new DataTemplate(() =>
{
var label = new Label
{
Text = "No results found",
FontFamily = "Roboto",
HorizontalTextAlignment = TextAlignment.Center
};
return label;
})
},
new Setter { Property = SfComboBox.DropDownStrokeProperty, Value = Color.FromArgb("#287AC2") }
}
}
;
resources.Add("sfComboBoxStyle", sfComboBoxStyle);`

[EMRTeam]

White dropdown, not showing item