If username field on Chase.com is pre-filled by a site cookie, Epiphany password manager will save a password with a blank username.
In follow up to #26 (closed) and #25 (closed), provided that you can get password manager to detect the login form om Chase.com and actually save it when it does detect it, if you have previously logged in without password manager having detected the form and/or saved your login data and you used the "Remember Me" checkbox, a site cookie will have your Chase.com username pre-filled.
Password Manager could eventually detect the login form and actually save your login data, but will not pick up the pre-filled username, resulting in an entry for the site with the password saved and a blank username.
This will work fine as long as the cookie pre-fills the username field for you, but if you clear your cookies or the cookie expires, you will end up with no username, but a password that has been filled in by password manager.