First, let me describe how 1Password works with www.pnc.com in Safari on the Mac. I go www.pnc.com and see a field for my user id in the upper right corner of the window. I type the 1P keyboard shortcut and my id is filled in and I'm taken to the "complete sign on" screen where the password field is located. I type the 1P keyboard shortcut again and my password is filled in and I'm logged into my account. Note: I only have one PNC Bank entry in my 1P database. It contains both my username and my password. "Submit when enabled" is selected.
On my iPad, when I go to www.pnc.com, the screen (in landscape mode) looks the same as on my Mac. When I open the 1P extension and select my PNC Bank entry my user id is filled in, but I am not automatically taken to the next screen. I have to tap the Login button. When I do that I see the familiar "complete sign on" screen. When I open the 1P extension and again select my PNC Bank entry (hoping to see my password filled in), nothing happens. I have to open the PNC Bank entry and copy/paste the password.