Hello Kent,
Thanks for reaching out regarding your breadcrumb schema.
Using the Rich result test, you have more than one output of breadcrumb schema with only one from Yoast SEO. It’s possible that you hardcoded the addition of the breadcrumb schema, a third-party plugin or your theme is also outputting. Infact, one is in microdata format instead of JSON-LD. You can confirm by performing a conflict check.
Often, we see problems occur in combination with another plugin or theme. The fastest way to rule out any conflict, is to deactivate all non-Yoast plugins and switch to a standard theme like Twenty Twenty.
Please test this on your development or staging site, if you have one. If not, we recommend using the Health Check & Troubleshooting plugin. This plugin has a troubleshooting mode, which does not affect normal visitors to your site.
If you’re unfamiliar with checking for conflicts, we’d like to point you to a step-by-step guide that will walk you through the process: How to check for plugin conflicts
If you do not feel comfortable to do this yourself or if this does not solve your issue, our Yoast SEO Premium plugin comes with one year of (technical) support.