Thanks for the heads-up, doctor gerlis - and others.
Uh Oh. Well, I can confirm the first point at least - but not sure that I can speak with any sort of authority about the last two. Let's hope it is not a case of 'Heavy-Gravity', about which I have been hearing quite a lot recently. ;)
Yes - some advertisers are seeing a delay in their stats today. The engineering teams are aware of this and, as you might imagine, are working to resolve it as a priority.
Please know that ads have continued to run as normal. This issue revolves around the reporting of statistics only, and does not impact ad delivery.
I'll post again when I have anything of substance to add - and, in the meantime, my apology for the inconvenience this is causing you.