A week or so ago, Google launched a new Search Console enhancement report for breadcrumb markup. Well, that report already had a bug with it.
Google posted in the data anomalies page “Google fixed an error in Breadcrumb validation (the last crumb in the chain does not, in fact, require an explicit URL target). As a result, you may see a reduction in errors in your Breadcrumbs report going forward.”
Google said this happened on September 26, 2019 and currently does not have an end date, you can check the status of it over here.
So if you were looking at the report early on, I’d check back in a few days.
Forum discussion at Twitter.