A week ago, we reported that Google Analytics had a data processing issue, which caused the reports to have missing data. A very limited amount of data was lost forever.
GAnalyticsAdvisor, Google's official Google Analytics representative updated us in the WebmasterWorld thread that the reports should now have the correct data. GAnalyticsAdvisor said:
Our re-load took a bit longer than previously expected. Please check now, as data has been restored.
However, when I visit the home page of Google Analytics (after you login), I still see the notification that "Analytics Processing Delay from April 30th to May 5th." In addition, no one in the forum thread confirmed Google's response, even though it seems people had about 22 hours to respond and confirm the analytics data issue.
Personally, I really did not see a drop in traffic on my sites in Google Analytics. So maybe it is hard to confirm the issue on both fronts.
Forum discussion at WebmasterWorld.
Update from Google: Google informed me the data loss recovery is complete. The data loss "was confined to roughly 5% of all data and 10% of e-commerce data," a Google rep told me.