yea, there was a problem with the compare games with games with "/" in the name (like Pokemon Gold / Silver) so the latest change was made for using the gameID from the database (not a fan myself but it fixes the other problem)
As for not finding the game, you need to type it exactly as it shows up in the game database. So, as TWRoO you would need a IV. Our database isn't smart enough to convert 4 to IV which gets to be a pain.