Can't Move/Duplicate Block
Every page type includes a specific code structure that is important for optimizing SEO and organizing your sitemap, therefore, some content block types won't be allowed to be duplicated or moved unless they are placed into the same page type.
The following is a list of example block types that can only be duplicated or moved into the same page type:
(Note: only one "Posts" content block can be placed in a blog page)
- "Menu list"