XF 2.1 Why is XenForo asking for members to fill a form after connecting with GitHub?

[Unique Username]

Hello,

I had a member recently try to join my site by using GitHub but was sent to a page to create a username, enter email etc. Shouldn't GitHub send this information automatically?

Screenshot

Captured with Lightshot

prnt.sc

 

[Paul B]

Your ticket has just been responded to.