It sounds like Google is trying to downplay the impact of this bug, as “some sites” apparently refers to all sites that have published content today.
If this sounds familiar, it’s because the exact same bug was affecting Google’s index back in May.
The issue eventually got resolved, but it certainly did impact publishers for a brief period of time, just as I’m sure they’re being impacted right now.
There’s nothing publishers can do right now other than wait for the problem to be fixed on Google’s end.
This latest bug also affected Google’s URL Inspection tool, however, Google has confirmed that specific issue has be resolved.
A large part of this issue has been resolved – in particular, the URL Inspection tool should be working normally again. We’re currently still working on resolving the remaining issues and will update here once we have more to share. Thanks for your patience!