Nothing specific, I was looking through the code on Saturday, and the biggest thing I noticed was that there are two conditions needed for the API calls. First is the opt-in checkbox, which we have covered previously as being enabled/provided now. The other is that the plugin also relies on the WP CRON system. Upon submission of the form, it will set a cron job for 1 minute later. It’s on that cron job that the API communication happens during. So if anyone has it disabled or it simply hasn’t fired yet, then the API calls won’t occur.
Wanted to note that the plugin as a whole has had a handful of developers on it, so I’m learning the ins and outs as we go along here, since I wasn’t part of the original build, but am presently.
Also, if it comes down to it and you’re willing, I’d be willing to poke at things a lot closer for your specific case, and see if I can find something not obvious. If so, we’d exchange credentials via private correspondence.