Post deleted after switching post type

good afternoon

I installed the Post Type Switcher plugin, changed all the “pages” to “posts”, and then found that several posts that were somehow attached to one of the pages (articles) were missing from the “posts” section, those were placed in it before changing type.

I searched in the database, but they weren’t there either, didn’t delete anything and the baskets were all empty.

What could be the problem?