Why is 1Pass not autofilling my name, address, phone number....?

I have a similar issue. I click the 1Password icon on my Mac Chrome browser. Then select my identity card, then select autofill. Then nothing happens. It doesn't autofill my email address. I have to manually copy/paste it. Apart from it not working I was wondering why we need to go through multiple selections to be able to populate some personal information. Why can't we select an icon in the field to select the email address or it just populates it (as other password managers do. Any help would be appreciated on why the autofill doesn't work.