Update - Engineers determined the root cause of the issue behind the 'new' vs 'returning' visitor accuracy problems in historical reports. Engineers are working toward a complete resolution in the historical record. We will report on this status page when the rebuild jobs complete spanning the affected period of June 27, 2021 - early September, 2021.
Sep 8, 22:01 UTC

Identified - Engineers are addressing a bug related to historical reporting of new vs returning visitor metrics. More details: Our support team identified a bug in the dashboard's historical reports, where ‘new’ vs ‘returning’ visitor metric segments are not reported correctly for dashboard reports run over periods older than 5 days old. The total number of visitors reported shouldn’t be affected. Data prior to July 27, 2021 is unaffected and no data is lost. Engineers are working on a fix, and will report on this status page when historical data record has been corrected.
Sep 7, 18:32 UTC