Thanks for getting in touch!
I can confirm there is an issue with our SChartSeriesCrosshair.
I have implemented a fix that will be included in the next alpha release.
There is a temporary fix you can add to your project to fix the SChartSeriesCrosshair which is to add the CustomSeriesCrosshair I have provided below:
@interface CustomSeriesCrosshair : SChartSeriesCrosshair
return self.superview == nil;
If you are seeing the same issue with your implementation of a custom crosshair, I'd check your implementation of the "isHidden" method is correct.
Let me know if you have any questions.