Create user with Passwordless Conection (c# SDK)

I have a Passwordless Connections (Email) without DB connection. We have “Disable Sign Ups” set for our Passwordless connection. The app emails the user with a link to the site so they can put in their.
And we generate the Invite User link by c# backend (Magic Link was send to email by Auth0, gmail.smtp) after that I’ve got the message with link for email verification and I saw the error after redirect to this link:
Something Went Wrong The link must be opened on the same device and browser from which you submitted your email address.

But…what?! "on the same device " like backend ?!