The new mobile login is nonfunctional

I have two accounts for separate purposes so I see the login screen quite a bit. The past couple days logging in has been an absolute pain with these changes. If I enter the code sent in the email it says it’s invalid; the same thing if I try my password instead. I’ve only been able to login when the old single page login screen appears, which I’m not sure how to replicate as it seems to appear at random. I’m able to verify my login information is correct as I can login through my mobile browser and on my computer. The only thing it could be is a issue with the app itself.