Line series sometimes become purple



I’m having a weird problem

In my app, I’m builduing live chart, that receive new point each one second.

The line between each point should be white.

I’m instantiate the line series series like this:

let lineSeries = SChartLineSeries() = UIColor.whiteColor() = 1.5

It works good most of the time, but sometimes The lines (or part of them)  become purple:

What could be the cause of the problem?

Thanks in Advance!


Hi Dors,

Can you tell me what version of charts you are running on and if possible, could you please email us a sample that demonstrates your issue at

Kind regards,

Matt / iOS Developer