So my girlfriend was Invited to the tech test this weekend and when she goes to try to install the game It says “The Game Isn’t Currently Not Available” She was invited to play it and We checked that her Xbox flight is active, I’ve seen a post about the same issue on twitter but I don’t know if there’s a fix for the issue at this time.
Here is the tweet about the issue: https://twitter.com/Andycu5_/status/1441885517759406082