We opened a new Savings Account at Ameriprise Financial a couple days ago & Quicken Classic Deluxe (Windows 10 Release R63.21) is unable to locate the new account. I manually added the account but unable to link it to One Step Update.
@eneranch what financial institution are you trying to connect with? I am using "American Express" and I have no issues connecting my AmEx HYS.
It could be also that it takes some time before your new account is available.