We are running Crucible/Fisheye 4.1.1, and our authentication is delegated to LDAP, using several different user directories. This is working pretty well, but we have some users who try to sign in (at which point Crucible should copy the user from LDAP), and are getting the "Password incorrect or unknown user" message. If they try and create a new account for themselves, the get the message "An user with that name already exists". However, that user does NOT seem to exist; it does not appear in the User UI and I can't find it via direct queries against the database. Where else could this user exist?