I've followed all the steps, but 1P8 won't work in IOS Safari

I've upgraded to 1P8 from 1P7 on my iPhone, and followed all the steps to set up. Yet when I tap the username or password field to sign into a website, I get a black popup reading "Press the 1Password icon in your browser's toolbar to unlock". There is no 1Password icon in the toolbar, but there is a puzzle piece icon. I tap the puzzle piece and a popup appears with Manage Extensions, 1Password, Privacy Report, etc. If I tap 1Password, 1Password demands my password. If I enter that, nothing happens. I'm right back to the website login page with the floating black popup saying "Press the 1Password icon in your browser's toolbar to unlock."

What am I doing wrong?

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1Password Version: 8.9.6
Extension Version: Not Provided
OS Version: IOS
Browser:_ Safari
Referrer: forum-search:https://1password.community/search?Search=can't%20make%201password%208%20work%20in%20ios