JSON-LD Data is duplicated in https://validator.schema.org/

[rumbaa01]

Description

I have set up your plugin for the Gatsby website.
There are a few JSON Ld structures within the project. Among them are Breadcrumbs, Article, etc ...
For example, Breadcrumbs JSON has dynamic routes that are different for each page.

Once I try to test your plugin on deploy preview via this tool https://validator.schema.org/. It finds 2 elements.

The first one has undefined data:

The second one is okay:

Also, the SSR page response has undefined.