I am not sure if it is related but I do not see any events or tags firing from the data client but I am pretty sure it is because the log seems to be showing activity.
Well, ok JSON Response doesn’t push anything because it’s triggered on particular event, and that event in your case is never parsed (there’s only incoming requests, but not actual events). So this part will work as soon as we figure out what’s wrong with your DT/DC (another thread - need some time before I can provide suggestions).