Line chart lines with same value are overlapping - swift

Question

I am using danielgindi
/
Charts for creating line chart. When Line chart data has same values, only the last drawn line showing. Other lines are hidden behind the last drawn line. Is there any way to show all lines.
image: 'fff' and 'User B' is hidden behind 'User C', they all have number of activities equal to zero
Line chart initialisation
func commonInit() {
guard let view = loadViewFromNib() else { return }
view.frame = self.bounds
self.addSubview(view)
lblXAxis.text = "Days"
lblYAxis.text = "Number of Activities"
lblYAxis.transform = CGAffineTransform(rotationAngle: -CGFloat.pi / 2)
self.roundAllCorners(radius: 6)
let valFormatter = NumberFormatter()
valFormatter.numberStyle = .none
valFormatter.maximumFractionDigits = 0
viewProgressLineChart.leftAxis.valueFormatter = DefaultAxisValueFormatter(formatter: valFormatter)
viewProgressLineChart.leftAxis.granularity = 1
viewProgressLineChart.xAxis.granularity = 1
viewProgressLineChart.xAxis.labelCount = 11
viewProgressLineChart.xAxis.avoidFirstLastClippingEnabled = false
viewProgressLineChart.xAxis.labelPosition = .bottom
viewProgressLineChart.chartDescription?.text = ""
viewProgressLineChart.xAxis.labelTextColor = UIColor.onPrimary
viewProgressLineChart.leftAxis.labelTextColor = UIColor.onPrimary
viewProgressLineChart.rightAxis.labelTextColor = UIColor.onPrimary
viewProgressLineChart.clipValuesToContentEnabled = true
viewProgressLineChart.legend.enabled = false
viewProgressLineChart.rightAxis.enabled = false
viewProgressLineChart.animate(xAxisDuration: 0.8)
}
This is how data is given to line chart,
func updateGraph(users: [User]){
let data = LineChartData()
for (index,user) in users.enumerated(){
let userColor = UIColor.selectedColors[index]
userAndStatusColorArray.append(UserAndStatusColor(name: user.name ?? "user", color: userColor))
var lineChartEntry = [ChartDataEntry]()
if user.progress != nil{
for progress in user.progress!{
let chartData = ChartDataEntry(x: Double(progress.day), y: Double(progress.activitiesCompleted!))
lineChartEntry.append(chartData)
}
let chartDataSet = LineChartDataSet(entries: lineChartEntry)
chartDataSet.colors = [userColor]
chartDataSet.circleColors = [userColor]
chartDataSet.circleRadius = 3
chartDataSet.drawValuesEnabled = false
data.addDataSet(chartDataSet)
}
}
viewPODProgressLineChart.viewProgressLineChart.data = data
}