It would appear that there is a new bug in the Google Search Console. Today, it’s missing an entire day’s worth of data in the search Analytics report. But it isn’t anything to worry about, as you’ve done nothing wrong Google is aware of the issue and is currently working on it.
The day in question is March 9, 2017, which is coincidentally around the same time as the Google Fred update.
John Mueller from Google said on Twitter, “We’re aware of it and should have the missing data point soon.”
— John ☆.o(≧▽≦)o.☆ (@JohnMu) March 13, 2017
This isn’t the first time something like this has happened. It happened before 11 months ago.
Don’t worry, as it’s simply a reporting bug in Google Search Console.