Almost all ads were checked & balanced yesterday and are serving optimally again. However, a handful of ads may still be serving suboptimally so we are continuing our data check efforts today. This might cause short periods of increased latency from when a UI/API change is made and when it takes effect in the ad servers.
We continue to monitor this situation and will advise when we have triple-checked that all ads are totally back to normal. In the meanwhile, if you plan to make any larger than normal configuration changes via the management API today, please let us know at firstname.lastname@example.org
so we can properly schedule some of our server-intensive efforts.