Weird bug with in swift?

[ytpm]

Hey,

I'm trying to use this library with swift, but for some reason I get this weird double drawing of numbers.. what could be the problem? someone knows?

https://imgur.com/xVrVBp3

I've added the WMGaugeView as a subview to UIView which sits inside a custom table cell. This is my code:

cell.gaugeView = WMGaugeView(frame: cell.gaugeContainerView.bounds)
cell.gaugeView?.backgroundColor = UIColor.clear
cell.gaugeView?.showScaleShadow = false
cell.gaugeView?.innerBackgroundStyle = WMGaugeViewInnerBackgroundStyleFlat
cell.gaugeView?.scalesubdivisionsaligment = WMGaugeViewSubdivisionsAlignmentCenter
cell.gaugeView?.needleScrewStyle = WMGaugeViewNeedleScrewStylePlain
cell.gaugeView!.minValue = -30
cell.gaugeView!.maxValue = 30
cell.gaugeView!.showRangeLabels = true
cell.gaugeView!.rangeValues = [10, 20, 30]
cell.gaugeView!.rangeColors = [UIColor(red: 27.0/255.0, green: 202.0/255.0, blue: 33.0/255.0, alpha: 1.0), UIColor(red: 232.0/255.0, green: 111.0/255.0, blue: 33.0/255.0, alpha: 1.0), UIColor(red: 231.0/255.0, green: 32.0/255.0, blue: 43.0/255.0, alpha: 1.0)]
cell.gaugeView!.rangeLabels = ["SAFE FREEZER ZONE", "HIGH", "DANGER ZONE"]
cell.gaugeView!.unitOfMeasurement = "temp"
cell.gaugeView!.showUnitOfMeasurement = true
cell.gaugeView!.scaleDivisionsWidth = 0.008
cell.gaugeView!.scaleSubdivisionsWidth = 0.006
cell.gaugeView!.rangeLabelsFontColor = UIColor.black
cell.gaugeView!.rangeLabelsWidth = 0.04
cell.gaugeView!.rangeLabelsFont = UIFont(name: "Helvetica", size: 0.04)
cell.gaugeView!.setValue(Float(item.temperature!), animated: true, duration: 5.0)
cell.gaugeContainerView.addSubview(cell.gaugeView!)

Thanks