Empty Karma Reward Box?
I think this happened to me too. I just completed the first part with Roxy. When I completed the event I got a Karma Box and two money bags. I don’t think I received any Karma from the box(nothing popped up and I’m pretty sure I had the same amount entering and exiting the event, 49k.) I was still in the story event area when I tried to claim it, but I did get money from the bags! When I left Roxy mailed me another box, and this one gave me 2k in karma, which clearly popped up.
So not sure if the reward from the event is bugged, claiming it in the story is bugged, or I just didn’t get the popup.