Last week we reported on a possible bug or change with reverse image search in Google. Well, it is a bug, not a feature or change. Google said the "pages that include matching images" is a bug that will be fixed in the upcoming week or so.
Danny Sullivan from Google posted on Twitter:
The team tells me the issue with "pages that include matching images" not containing actual matching images and missing dimensions is indeed a bug and a fix is in process. Maybe will take up to a week for the fix to fully roll out to everyone. Thanks for your patience.
— Danny Sullivan (@dannysullivan) January 13, 2018
Rado from Google posted in the Google Web Search Help thread:
Thank you for bringing this to our attention! The issue with "Pages that include matching images" not containing actual matching images is indeed a bug, and should be fixed shortly.
I did not see mass complaints about this either because it is a limited bug or not that many people use reverse image search.
Forum discussion at Twitter and Google Web Search Help.