You don't have to rebuy it though, they update their tiles on all their storefronts. If you bought it you just redownload it...I've had to redownload Dark Academia after it had one and there were no issues and no I didn't have to rebuy it. Okay no I see what yo mean now, THIS one is asking me to rebuy it and it's being treated as a completely new item entirely...what you need to do is select "I've already bought this" and send an email to the account you bought it with to fix the issue!