Safari says "Open 1Password"

I just got the same "oops" message and this time, instead of quickly clicking the button, I just waited a minute and was thinking about the situation...and then the TouchID prompt appeared! The browser showed the dropdown in the login field. So I clicked away and back on the browser icon, which showed everything working properly.

So this seems to be some kind of timing issue where the TouchID takes some seconds to appear, the browser extension times out and erroneously says to "reload 1password" (what does that even mean?), which doesn't work anyway, and is actually not needed.