Weird shapes / artifacts

[seanhess]

Hi there, beautiful progress indicator. I'm getting some strange artifacts though (see below)

I set up the view in interface builder, using constraints to lay it out. Then the following code to control it:

    @IBOutlet weak var progressView: DAProgressOverlayView!

    override func viewDidLoad() {
        ...
        self.progressView.displayOperationWillTriggerAnimation()
    }

    func videoCompletedFrames(completed: Int32, ofTotal total: Int32) {
        let percent = Float(completed) / Float(total)
        dispatch_async(dispatch_get_main_queue()) {
            self.progressView.progress = CGFloat(percent)
        }
    }