Facebook login - missing first name last name

Hello guys

For some reason i m not able to retrieve users first and last name via facebook login. What i did as a temporary solution:


i did the lessons but, in my case at login page, i don t have the fields for first name and last name, just standard Bubble fields
Any sugestion?

i have found that user first-name last-name is different then facebook user first name last name.
Question 1. Can we merge this fields?
Question 2: I have signed up in my app, without facebook, the clasic way. Then i log out and click on login with facebook and i get this:

is it something normal?