The tech giant acknowledges existing issues in Search Console. Check what they are first and then report and offer feedback on any other features or issues you come across. Use the GSC Feedback system that is handy right in your navigation bar. Here is the answer according to Google: Some issues have long names that are not easy to understand.
If your site has a very large number of issues (whether or not there are active instances), the report will show only the first 200 issues, sorted by importance. It’s really exciting how schema lets businesses inform search engines of what’s most important to them. Search marketers have enjoyed multiple methods of supplying “data” for years; other forms are microdata and RDF. Advanced schema structures have emerged and are rapidly improving search opportunities. It’s now easier to implement and nested coding avoids bulk and redundancies. You want to add meaning and value, not just more code that doesn’t benefit the reader nor the page.