react-native-modal-datetime-picker showing only current date

I'm using react-native-modal-datetime-picker in my React Native app on iOS, and when the modal pops up, instead of having a range of dates to scroll through, it shows only the current date:

<DateTimePickerModal
    datePickerModeAndroid={'spinner'}
    mode={'date'}
    is24Hour={false}
    isVisible={this.state.isDatePickerVisible}
    onConfirm={() => {}}
    onCancel={() => {}}/>

react-native-modal-datetime-picker@8.9.3 react-native@0.63.4

Does anyone know how to approach solving this?