Airbnb react-dates DayRangePickerController: onFocusChange func doesn't work

Question

I've used Airbnb react-dates library, https://github.com/react-dates/react-dates

react-dates version "react-dates": "^21.8.0",

I wrote the same code with component, but in component, onFocusChange func props doesn't work. this code works: onFocusChange={console.log('test')} it prints 'test' but this code doesn't: onFocusChange={focusedInput => console.log(focusedInput)} Since other components like DateRangePicker works well, it prints focusedInput with the code above, I have no idea what the problem is..

Source code (including props configuration)

  return (
      <DayPickerRangeController
        startDate={startDate}
        endDate={endDate}
        onDatesChange={handleDatesChange}
        focusedInput={focusedInput}
        onFocusChange={focusedInput => setFocusedInput(focusedInput)} // here
        numberOfMonths={2}
        initialVisibleMonth={() => initialMonth}
        noBorder={true}
        small={true}
        // customArrowIcon={null}
      />
  );

and this is my github link