On May 1, 2019, at approximately 5pm PST, a bug caused Google Ads reporting for April 30 and May 1 (Pacific Time) to be incorrect. This bug impacts reports in AdMob, including any report data downloaded via the AdSense Management API.
All reporting after 4am PST on May 2nd is accurate.
We are actively working on fixing the bug and correcting the data. We appreciate your patience as we work to resolve this issue as quickly as possible.
There is no impact to ad serving or payments.