If the accounts in question are unhidden/set to show in the Account Preferences, but are still hidden in the My Accounts widget, the accounts may be hidden in Money Management.
Any accounts hidden in Money Management will not display in the Accounts widget, unless you unhide the accounts in Money Management.
To unhide accounts in Money Management, visit Money Management in desktop or mobile banking.
In the desktop online banking dashboard, select "My Finances" on the blue navigation menu. If you are in the mobile banking app you can find "My Finances" tab on the bottom of the app after you log in.
Select "Accounts" on the Money Management menu, then select "Manage."
Then, select the Connection and the account you want to show.
Toggle ON "show this account".
Select "Home" on your Online Banking menu to refresh your My Accounts list.