For whatever reason, whenever I try to create an alt on the seasonal Frostmourne realm, it fails to log into the character and crashes the client. After relogging, the character is there in the realm, but when I try to log in to them, it says a character with that name already exists and doesn't let me log in as them. It's only my first alt on the realm, so I don't know what's wrong or what's happening.
