Verify using code

It sounds like you might have been signing in to 1Password.com in the browser on iOS while also approving that sign-in from 1Password on the same device. (Please correct me if I'm wrong!)

If so, then the loading spinner that you see on 1Password.com will usually time out after about 15 seconds and tell you there was a problem signing in. This is because 1Password for iOS will have been put to sleep by iOS when you switched to your browser to paste the verification code.

Both the 1Password app and 1Password.com have a part to play in the sign-in process, and the 1Password app needs to be "awake" to handshake with 1Password.com beyond just generating and pasting a verification code.

Our Development team are looking into how we might be able to mitigate against iOS putting the 1Password app to sleep in this specific case (since it still has a job to complete). For now, I'd recommend using a verification code from 1Password on another device (such as another iOS device, or your Mac) so that both 1Password and 1Password.com can be active. In a pinch, you might find (and this is by no means a guarantee!) that if you switch between 1Password and your browser fairly quickly a few times after you've submitted the verification code, this will allow you to sign in, but that's probably more a fluke than anything else.

As I say, if I'm way off in terms of what you were trying to do, let me know, and I'll look into another solution with you.