Each time we close a sprint (~monthly) there are additional issues that are rolled over to the new sprint
Within each sprint, we do a number of releases and 'releasing' the tickets in JIRA sets the status of the tickets in that release (aka fix version) to 'Closed'
Only 1 sprint is active at any time, and the 'Active sprints' Board, currently containing 90 tickets of type Bug, Task, Epic, Spike, Improvement, New Feature (no sub-tasks), in status'
Reopened, In Progress, Under Review, Ready for QA (No 'Done' or 'Closed' tickets)
The 'Backlog' view contains 1 active sprint and 2 inactive (future) sprints and a Backlog
On the 'Column Management' page (RapidBoard.jspa?rapidView=12&config=columns) there are 2779 issues showing as 'Done'
When trying to close the sprint it shows "0 issues were done" (consistent with the above) but then shows "511 issues were incomplete"
When I search issues by Sprint 520 issues appear, 429 of which imported in to the sprint from the last sprint as "Closed" (with varying resolutions, Duplicate, Won't Do, Done, Not Applicable, etc) from as far back as June 2016 that have been rolled through 17 different sprints
This affects the burndown chart, as the story points are not shown as released at the end of any sprints
I tried doing a bulk action to Close all tickets, but they still rolled over to the next sprint
Any assistance would be appreciated