Zooming chart loses null setting on points

[Aaron Peronto]

In the chart that I am creating we have the ability to filter the data.
When a filter is applied, we place null points in the series to give the appearance of "picking up the pen" to skip over ranges of data that fall outside of the filter. We want to leave these gaps in the line that is drawn and NOT connect the last point before the data goes outside the filter with the first point when it comes back inside the filter condition.

This works fine until I zoom in on the chart.
When I zoom, the drawn points are all connected which means that where there used to be a hole in the line where the data remained outside the filter condition, there is now a straight line connecting the last drawn point before the data went outside the filter condition with the first point where it returns inside the filter condition.

We need to preserve this hole in the line that is drawn.
Any ideas?

I can try to post some screen shots of this if you need them.

Thanks.
Aaron

[Aaron Peronto]

Trying to reproduce my own issue so that I can take some screen shots of it and now I cannot get this to occur again.

I'll let you know if I can get back to this state again.

Until such time, nothing to see here

Thanks.

Aaron