Not re-calculating when selection is removed

[LoveStromberg]

Hi. I like this extension. But there are some issues:

1. Is there a maximum number of nodes? In my app the chart is not shown until I make a selection in the filter pane.
2. When I´ve done a selection the chart is visible and accurate. But when I remove the selection the chart is not changed. It remains in the state it was when I had the selection.

Is this something you can look into?

Thanks!