Edit: no idea if this something in your control, just asking.

Hello there! Currently I don't know how to solve this problem. Maybe it is because it is a demo?

Not sure if this is helpful but I vaguely remember something like this, though I think that was about Twitch (though when you say share recordings it too does sound like this is about Twitch) and at least at that time they were using some type of database/set from another website, I just can't recall specifics but what's for certain is that this would be out of the devs hands. Though you can still always put the name of the game in your video title or description or wherever :P