Q: MKPolyline displays artifact/pixelation on map after zoom-in Including a photo below, as I'm not sure how to describe this exactly.
We're using MKPolyline to draw a line on a map in an iOS application. After drawing the line, the user can zoom in or out on the map. 
After zooming in, occasionally, the following artifact/pixelation can be seen, usually toward the outer bounds of the line. 

Any thoughts/suggestions on what is causing this, and how to fix it? Any information would be appreciated.
