click buttons 1), 2)
1) the series should be removed
2) its data should be replaced
the second series which was not initially removed doesn't have this problem.
When calling series.remove() before initial rendering the series freezes ...
i.e. its OptionDataListener is being removed without actually removing the series from the series collection, leaving it unresponsive to subsequent OptionDataEvents
Don't call series.remove() initially (initially this is can be avoided by not creating/removing series unnecessarily)