Yes. I am never able to get the app to paste the password into the password field.
It happens every time on my first generation iPad mini. I have no other devices to test it on.
I'm not sure how you'll fix this because it requires a Citizens Bank account to log into. If there's a way I can work more closely with you to fix this, I'm happy to do it because my banking site is one of the most common places that I would use 1Password. There is a screen that shows me a security image. Then when I approve the image, I get a password field. When I invoke 1Password and unlock it with my password, it fails to fill the banking password field.
Now I see that my Barclay card account has the exact same issue. It seems that if I click in the password field to enter a password, the field deactivates when I call up 1Password and as a result, no password is pasted into that field.