For the Silence Falls node in the record book you have to complete the Deathsinger challenge in less than two minutes. My question is if you've already completed the challenge this week on a character can you come back and do the challenge again to get the node? Or will doing the challenge once on said character preclude that character from being able to unlock the node because subsequent runs won't count as challenge completions? I'd appreciate it if anyone can confirm one way or the other. I'd hate to lock myself out of it for another month.