JTAppleCalendar Issue

delegateMethods.swift

func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
    formatter.dateFormat = "yyyy MM dd"
    formatter.timeZone = Calendar.current.timeZone
    formatter.locale = Calendar.current.locale
    
    let startDate = formatter.date(from: "2017 01 01")!
    let endDate = formatter.date(from: "2017 12 31")!

    let parameters = ConfigurationParameters(
        startDate: startDate,
        endDate: endDate,
        numberOfRows: 6,
        calendar: Calendar.current,
        generateInDates: .forAllMonths,
        generateOutDates: .tillEndOfGrid,
        firstDayOfWeek: DaysOfWeek.monday,
        hasStrictBoundaries: false

    )

    return parameters
}

func calendar(_ calendar: JTAppleCalendarView, cellForItemAt date: Date, cellState: CellState, indexPath: IndexPath) -> JTAppleCell {
    let cell = calendar.dequeueReusableJTAppleCell(withReuseIdentifier: "DateCell", for: indexPath) as! CalendarDateCell
    configureCell(cell: cell, cellState: cellState)

    return cell
}

func calendar(_ calendar: JTAppleCalendarView, willDisplay cell: JTAppleCell, forItemAt date: Date, cellState: CellState, indexPath: IndexPath) {
    configureCell(cell: cell as! CalendarDateCell, cellState: cellState)
}

func calendar(_ calendar: JTAppleCalendarView, didScrollToDateSegmentWith visibleDates: DateSegmentInfo) {
    setMonthAndYear(date: visibleDates.monthDates.first!.date)
}
    

utilityMethods.swift

func configureCell(cell: CalendarDateCell, cellState: CellState) {
    cell.dateLabel.text = cellState.text
    cell.isToday = Calendar.current.isDateInToday(cellState.date)
    cell.inCurrentMonth = cellState.dateBelongsTo == .thisMonth
}

// The month/year is working fine
func setMonthAndYear(date: Date) {
    formatter.dateFormat = "yyyy"
    yearLabel.text = formatter.string(from: date)

    formatter.dateFormat = "MMMM"
    monthLabel.text = formatter.string(from: date)
}

viewDidLoadConfig.swift

calendarView.calendarDelegate = self
calendarView.calendarDataSource = self
// Dynamically set the "height" constraint
calendarHeight.constant = (CalendarDateCell.cellSize + 4) * 6

// Initial month/year
calendarView.visibleDates { [weak self] visibleDates in
    self?.setMonthAndYear(date: visibleDates.monthDates.first!.date)
}