I just setup the login for a local instance of Jira. I copied and pasted the login information into our password database where we store nearly 200 other account logins without problem. Moments after setup, I put that same password in the login screen as a way to try and see if I could get in, nope. Wouldn't accept either username for the myatlassian user or the local Jira user. They both have the same password. The forgot password link also doesn't work, which isn't surprising seeing as Jira wasn't configured with any email criteria, so I don't know how it would expect to function out of box.