How to delete a non-visible sprint

[Hisamitsu Koga]

I want to delete a sprint, but it can't be seen on Backlog page. Sprint itself exists since I can search issues by sprint in JQL. Is there any way to delete a non-visible sprint?

[Thomas Schlegel]

Is the Sprint closed already? Closed sprints are not visible on the backlog page, but you can get to the sprint with the sprint report.

I don't think that you can delete a closed sprint. Reopen and remove all the tasks from the sprint could work, but I didn't test it.

[Hisamitsu Koga]

Thank you for your answer.

The sprint can't be seen on the sprint report, so I can't reopen the sprint. Why can't sprint be listed on Sprint report?