This is one of the biggest differences with the new system. Every person gets their own unique username and will see only (and all) of the accounts that they have some role on.
If you have multiple memberships where you are the primary owner, all accounts will now appear behind a single username.
If you are primary on one membership and joint on another, they will now also appear behind a single username.
If you are solely a joint member, you will now have your own member number and username* and will only see those specific accounts where they have a joint role. * Joint members will be provided this information through the mail.
If you are on an account with joint members, have the joint member complete the Joint Account Holder Info Update form.