How to identify a contact in the chat?

Hello @tilly @IsaacTakushi
I followed the steps from the api docs here:

but we still see users coming in inbox as Unknown Visitors, even after setting the required params in the “window.hsConversationsSettings” object

window.hsConversationsSettings = {
loadImmediately: false,

identificationEmail: “visitor-email@example.com”,

identificationToken: “tokenId”

};
and then we load the widget:

window.HubSpotConversations.widget.load();

I think we had like 1 or 2 persons identified with their mail, and after some logouts/logins they also started appearing as Unknown Visitors.
Can someone provide some solution for this?