With the indexing issue going on, people have also been reporting that Google is having issues showing their rich results in the search results and also claiming their mobile-friendly pages are not mobile friendly.
In the past few days or so, I've received numerous complaints about both - the rich results no longer showing up in the search results and Google saying their pages are no longer mobile friendly.
Danny Sullivan from Google responded to the recipe markup issues saying Google is investigating them after other reports have come in:
This is unrelated. We did see another report of this in terms of recipe meta data, and our team involved with that is doing a review.
— Danny Sullivan (@dannysullivan) April 9, 2019
Google is saying the indexing issue and this issue is unrelated.
But I suspect they are also investigating the mobile-friendly issues. Truth is, I saw more complaints about the mobile-friendly issues than the recipe or schema issues.
Forum discussion at Twitter.
