If you're not in the same account as last year, it cannot transfer the 2015 info into your 2016 return.
Do you see any evidence of the 2015 return in the 2015 Tax Timeline of that same account you are using? If you don't see any evidence of it, then it's in another account. Or do you see it there, but it says access is locked when you try to view/print it?
How did it make you change your log in? Did you change the User ID of the same account, or did you set up a whole new account?
We can help you troubleshoot multiple accounts to find the right one.
