Thank you for contacting us and I'm sorry about the issue you are experiencing. You can only view your password hint when already signed in to an account and trying to unlock the app. If you are not signed in to your account, you will not see the password hint. Please email us or create a ticket on this website asking for your account's password hint and we can retrieve that information for you.
To view the password hint on Mac, lock the app and click the eye icon.
To view the password hint on iOS, lock the app and wait a few seconds in the lock screen to review the password hint (it's a light colored text above or below the password input).