I faced the same issue with "Person" schema type while trying to test my markup in Google's Rich Results Test tool. After spending much time online to find out the issue, came across a very good article that gives the answer to this issue. Apparently, not all schema types are supported in Google's Rich Test Result tool.
The following is a list of Supported rich result types that the Google's tool currently supports as mentioned in their Seach Console Help Page.
- AMP article
- Article
- Breadcrumb
- Carousel
- Course
- Critic Review
- Dataset
- Employer rating
- Estimated salary
- Event
- FAQ
- Fact check
- Guided recipe
- How-to
- Image License
- Job posting
- Job training
- Local business
- Logo
- Movie
- Product
- Q&A page
- Recipe
- Review snippet
- Sitelinks searchbox
- Software app
- Special Announcement
- Video
As you can see, schema type "Person" is not in the supported list.
Thanks to this wonderful article SEO for 2021: How to Use Google's New Testing Tool for Structured Data written by Anne Fernandez that has some additional tips.
ProfilePage
rich result type too. – Swap