UPDATE: It's February 3, 2023 and Aftermath is still not showing as completed on my list. I've heard nothing from anyone about the issue after I submitted a bug report (Tren, thank you for letting me know everyone was on holiday; definitely expected that time of year).
So far, I've gone to all the characters to try to nudge a reaction that will complete the quest but they all think that I'm done with it (because I am!). The only thing I *haven't* done is fight Lord Zamorak again. I'd like to avoid that if possible simply because of the time involved to do so. If anyone can look into this glitch and resolve it or tell me what - if anything - I've left incomplete, I'd sure appreciate it. Thank you.
03-Feb-2023 22:28:23