Search Console AI report lost impressions from November 9 to 11

Google confirmed a logging error that caused a decrease in impressions in the Search Console Generative AI performance report for data from November 9 to November 11 2026. Google said the issue affects data logging only. The November 2026 core update started on November 10, during the same window.
Our take
Do not read a drop in AI impressions from those three days as a core update hit. Annotate November 9 to 11 in your reports and compare core update impact from November 12 onward, using the regular Search performance report as the cross check. Tell clients now, before someone screenshots the dip and asks what broke.


