Aha Develop - Shipped Features not removed from Sprint Planning Prioritized Backlog Merged

As part of Sprint Planning, when features in the "Prioritized Backlog" are having a status of "shipped" they are remaining in the "Prioritized Backlog". When deemed "shipped" status they should disappear from Sprint Planning "Prioritized Backlog.

Attached example has "FCS" and "Accepted" status feature which in workflow are deemed "shipped". These should not appear in the "Prioritized Backlog" as they are done.