My first direct app is similar. The "Generate a security code" button only appears on the login screen, not after you've logged in. It used to be covered by a

My first direct app is similar. The "Generate a security code" button only appears on the login screen, not after you've logged in. It used to be covered by a pop up. Now when I open the app it auto logs me in with face ID and I have to actively log out to get to it. The code in my case is used to log into their website. The first time I tried I had to phone them and say "eh? how's it work?"