I have the same issue.
My custom built PC is experiencing the same problem.
I have a tablet and my desktop PC linked to my Microsoft account.
No Icon. Script says, everything is fine, updates are present every requirement is met. Icon not showing on Desktop PC and tablet.
I even re-installed the updates to make sure everything is fine. My media-Center PC which has just a local account is only active when watching movies, got the icon. PC of my GF has the icon and is already reserved.
I think it has something to do with the fact, that I enrolled as a Windows Insider, but I have found no confirmation that it has something to do with that.
And if that is the "issue": How do I fix it? How do I download the official Windows 10 Update or how do I enroll for the new license?
Kind regards,