So after one of my friends spent nearly 12 hours in the infinite quest we found a fix.
It seems that your account gets stuck in a (half logged in/Half trying to login state)
What did to fix this: I logged into my friends account (xbox) on my console (playstation) literally that’s it fixed the issue immediately. I logged out of his account and he logged back in on his xbox everything working fine after that.
Solution(for now)
Have your account log into the beta from a different hardware address doesn’t have to be cross platform. Could just be another xbox(machine). I believe Blizzard could fix this with a hard log out of all accounts but I am not a specialist so not sure exactly what is causing the issue nor the technicals to correctly fix it.
Hope this helps!