Search Console logs first Generative AI report bug

Google has documented the first data anomaly to hit its new Generative AI performance reports in Search Console. A logging error on 24 June 2026 caused a drop in reported clicks and impressions in the Discover performance report, and a drop in reported impressions for properties with access to Generative AI features in Discover. The error affects reporting only, not actual traffic, but it lands weeks after the reports launched and just as teams start using them to measure AI visibility.

What happened

Google confirmed the error on its official Search Console data anomalies page, which tracks known reporting issues.

“A logging error caused a decrease in clicks and impressions on the Discover performance report for data on June 24, 2026.”

Google Search Central, Search Console data anomalies

For properties with access to Generative AI features in Discover, Google says the same error also reduced reported impressions. The Generative AI reports show impressions only, so no click data is affected there. Google’s anomalies page classifies this as a data logging issue: the numbers for 24 June are understated, but real user visits and clicks were not affected.

Why it matters

The Generative AI reports are the first tool Google has offered for measuring visibility inside AI Overviews, AI Mode and AI features in Discover, and they launched in early June to a subset of sites. A reporting gap this early is a reminder that the data is new and still settling. Teams comparing week over week AI visibility will see an artificial dip on 24 June, and anyone baselining the new reports should annotate that date rather than read it as lost visibility.

What this means for multi-location brands

Central teams building AI visibility dashboards across many markets should exclude or flag 24 June before drawing conclusions. A one day understatement is harmless in isolation, but it skews exactly the kind of automated week over week and market by market comparisons an enterprise runs at scale, and a false alarm across 500 locations costs real analyst time.

It also argues for not relying on a single measurement source. Search Console tracks how your pages surface in AI features; pair it with location-level insights via API and with Places AI to see how AI answers actually present each location. For the underlying discipline of earning AI citations, the generative engine optimization fundamentals are unchanged: the bug touched the measurement, not the ranking.

The bottom line

Google’s new AI visibility data had its first confirmed logging error within a month of launch, understating 24 June figures for Discover and its Generative AI report. Annotate the date, keep the reports in your stack, and expect a few more anomalies while the newest data in Search Console beds in.