Google has posted that in Google Search Console your job posting errors may have changed. There may be a reduction in the general errors and Google may now show you more specific errors instead. The total number of errors should not change but how Google categorizes those errors may have changed.
On December 10th, Google wrote:
So if you take a quick look at your job postings report, you may now get more detailed errors that you can take action on.
Forum discussion at Google Webmaster Help.
