[CONFCLOUD-63036] Unsupported content with the new editor - Create and track feature requests for Atlassian products.

Pasting specific contents on new pages created with the new editor (blog posts/ meeting notes) can cause a Unsupported content error.

Create a Blog post
Copy some content from external sources i.e. Google Spreadsheets and insert into the page;
Publish it.

The blog post/page should render correctly.

A "Unsupported content" box is shown instead of the page's content as shown below:

Remove the content from external sources.

is related to

CONFCLOUD-69935 Cutting formatted text (inside layout columns) and pasting into another column on the same page breaks the published version of page