The website does not show any of my PS4 friends although they linked their PSN accounts to the Ubisoft accounts.
You have to add them on the Ubisoft club page, and make sure they are your friend before they pop up.
I also experience similar problems. I have a friend who I want to invite. But when I go to the Beta page and click on Inivite Friends, nothing happens at all. Edit: it was the fault of my browser (Firefox). :,D
