2nd user in Family Plan doesn't work

I'm a new user and have 1Password working well on my machine. I have invited a second person, my wife, and she accepted the invite, and I confirmed. She now shows up as active in our family plan.  She can log into the 1Password app with her username and password auto filled by 1Password. But, when she logs into any of her usual sites, 1Password is a no show. No tags asking to remember user/password or to use its generated password. What have we overlooked?