One of my engineers was cleaning up their sprints and wasn't able to close the sprint. I noticed that the start and end dates were 06/Oct/08 to 18/Oct/12. When I change the Start and End dates, in this order, I get a message that says the sprint duration is too long. If I change the dates End to start, basically left to right, I get a message that says "The start date of a sprint must be before the end date.".
Has anyone come across an issue like this in the past? I have a feeling that I'm going to need to modify the DB table entry, but I would like to see if there are any other methods of changing this information.
Jira Server 8.3.2