We have a strange bug, this has happened twice to me. Sprints under a different project key are showing in my project. These have no issues related to the erroneous project key. However no-one in the team created this Sprint. Kindly reach out to help us support this. Deleting the erroneous sprint deletes the actual sprint.
To clarify
e.g.
Project XXX
Has active Sprint 'XXX Sprint 33' (which is fine)
&&
Project YYY
Has active sprint 'YYY - Sprint 5'
Some how the above sprint has appeared in the backlog for XXX as well as YYY. The This is erroneous. It contains none of the issues in the genuine sprint YYY, where it belongs.
I believe deleting the erroneous sprint in XXX also deletes it in the YYY backlog.
Which won't be good for that team.
This is a P1 issue.
Thank you