FIXED: "Forza Motorsport 7 is currently not available in your account... blah blah blah"

After hours of trying to fix this issue (signing out & signing back in the windows store, uninstalling DLC & reinstalling, restarting PC) The only solution for me was downloading a random app off of the windows store. I personally downloaded “translator” since it’s a very small app but you could pick whatever. I don’t know how or why this fixes it but it does.