Search Console Bug Lowered AI Report Impressions for Nov 9 to 11

Google says a logging error lowered the impressions shown in the Search Console Generative AI performance report for Search for data from November 9 to November 11, 2026. Google says the issue affects data logging only.

What changed

Google added an entry to its Search Console data anomalies page for November 9 to November 11, listed under Generative AI in Search. The entry reads: "A logging error caused a decrease in impressions on the Generative AI performance report in Search for data from November 9 - November 11, 2026." It adds: "This issue affects data logging only."

In other words, the dip you may see in that report for those three days is a reporting problem, not a change in how often your site was actually shown in Google's AI features.

For context, the Generative AI performance report (Search) shows how often links to your site appeared in generative AI features on Google Search, which Google lists as AI Overviews and AI Mode. Impressions are its main metric, and you can group the data by page, country, date and device.

This isn't the first time it has happened. The same data anomalies page lists a similar logging error for this report for August 13 to August 17, 2026, with a later update saying the missing data for that period had been restored. Google's November entry doesn't say whether the November 9 to 11 data will be restored.

Who it affects

Anyone who uses the Generative AI performance report in Search Console. Google says the report has been available to all websites worldwide since August 31, 2026, though it may not appear for a site that hasn't had enough impressions in generative AI features.

The timing makes this more confusing than usual. Google's November 2026 core update started rolling out on November 10, right in the middle of the affected window. If you're looking at that report to judge how the update is treating your site, those three days will give you the wrong picture.

It also matters if you send monthly reports to clients or to a boss. A drop in AI impressions in a November report could easily be read as a loss of visibility when it's actually a logging gap.

What to do now

• Annotate November 9 to 11. Add a note in your reporting tool or spreadsheet so anyone looking at AI impressions later knows those days are unreliable.
• Leave those days out of comparisons. When you compare periods in the Generative AI performance report, pick date ranges that don't include November 9 to 11, or call out the gap clearly if you can't avoid it.
• Don't change content because of this dip. Google says the issue is limited to data logging, so there's nothing on your site to fix.
• Keep the core update separate. Wait for the core update to finish before analyzing ranking changes, and judge AI visibility on data from outside the affected window. I covered what to check in my post on the November 2026 core update.
• Check back on the data anomalies page. That's where Google noted that the August data had been restored.

If you'd like a hand with reporting that accounts for gaps like this, my SEO reporting and analysis work covers it. I've also written about how to track AI Overviews more broadly.