Portfolio - How to account for off-weeks/holidays in future sprint planning

[Jeff Siadek]

We're using the improved interface for portfolio. We are on 3-week sprints, but sometimes have 1-2 weeks off before we start the next sprint. We pre-plan multiple sprints ahead and would like our roadmap to be accurate. However, Portfolio gets the future sprint start dates wrong because it does not know about the holidays or off-weeks.

Anyone have ideas on how can I get future sprints to reflect the correct start date on the roadmap?