Google Chrome regularly checks and updates itself, which explains the sudden appearance of this problem even if you haven’t updated the browser yourself. In fact, many people encountered this problem in February 2018. Google Chrome error: The most likely cause of this problem is an error when updating to a new homepage. And the problem only occurs when you use Google’s search engine. It may be due to a conflict between the thumbnails and the search engine text box. Search Engine Option: Google’s default search engine may also be causing this problem. Why won’t Google Chrome show my most visited thumbnails?