Series being drawn over the X-Axis label

[skeleten]

When zooming in and scrolling, sometimes one of our Series gets drawn over the Labels for the X Axis:

The code to create said series can be found here:
https://gist.github.com/skeleten/64190cc597968afec97bc8b780d1b66c

We are using a simple LineGraphSeries, and are unsure where the problem lies, any help would be appreciated.

[morganor]

I have the same problem with BarGraphSeries

[andrewcccc]

any suggestions and fix?