As Google is in process of updating the search console, recently last week when google added breadcrumb report to search console enhancement report section, google also sends an email notification with issues along with the subject line: Fix Breadcrumbs markup for domain.com.
What this Email Consists of?
Email shows how your website is impacted by the details of Breadcrumbs markup issues which means your breadcrumb pages might not appear in search results. Search console created a new report for this which enables you to identify, fix & resubmit those pages to Google.
Check out the Screenshot