My Story Points By Iteration chart shows open and in-progress story points for a prior sprint which had completed over the holidays when many folks were on vacation.  The open items were marked closed a week after the sprint ended, but they are still marked open/in-progress in the Story Points By Iteration chart, even though the plan shows them as resolved.  I tried regenerating the chart.  How do I get the Story Points By Iteration chart to update such that the completed work in the prior sprint shows as closed?

Thanks!