Repeater shows up collapsed - why?

I dont want this repeater to show collapsed, when the form loads. I want to show one item.
Card::make()
                ->schema([
                    Repeater::make('start_times')
                        ->label('Hora(s) de inicio')
                        ->hint(__('Haciendo clic en el icono clonar puedes añadir más rápido.'))
                        ->createItemButtonLabel(__('+ Añadir hora de inicio'))
                        ->columns(2)
                        ->required()
                        ->cloneable()
                        ->disableItemMovement()
                        ->minItems(1)
                        ->defaultItems(1)
                        ->schema([

                            TimePicker::make('start_time')
                                ->label('Hora de inicio')
                                ->default('12:00')
                                ->withoutSeconds()
                                ->required(),

                        ]),
                ]),
`
Martin-Schenk-Screenshot-2023-09-28_17-39-56.jpg
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