I have a sprint scheduled from 24 Sept to 12 Oct (3 weeks). Till yesterday (2 Oct); everything was going smooth, and we were monitoring the sprint using the burndown chart normally. Suddenly today morning, we found the burndown chart started showing dates till 24 Oct, and it also shows a straight line indicating remaining work.
We have done no changes in the project set up. I have done an integrity check, and also did a re-indexing for the project as well as at entire JIRA level. But no changes.
Interestingly, this issue is happening only for one project in JIRA, and other 6 projects are working perfectly fine as expected.
Any suggestions on what is wrong and how to resolve this?