Hi @BarryCarlyon – thanks for providing your request information, this makes it easier to troubleshoot. 
Just want to confirm for my own understanding that in each of the cases where you mention a failure (v3/v5 api, as well as chat/dashboard via editor), you’re receiving a positive response from the API, yet are not seeing any commercials on your end, correct?
May I also ask on what platform you’re attempting to view the ad (logged-in, Chrome, Safari, mobile, w/ or w/o Adblock)? The reason I ask is that there are instances when the platform decides not to serve an ad to a user for rate-limiting reasons.