Google has updated its breadcrumbs rich results report within Google Search Console to potentially show more warnings and notices around structured data issues with your breadcrumb markup. Google posted the update and said:“Search Console started to show a warning when sites use the HTML id attribute to specify an ID for Breadcrumb structured data. See the Breadcrumb documentation for more information on how to specify IDs.”Google Search breadcrumb. A breadcrumb in Google search is when Google shows the path of where the page is located within the site directly in the search results snippets. You may want to check out the breadcrumbs report in Search Console to see if there are any new warnings or errors showing up.