Hi,
If your pages have excertps or anything in their description fields, then those would show up. Make sure you have not changerd the primary and secondary description fields here: https://i.imgur.com/CEvO6RM.png
If the configuration is that, then there is no text within the page excerpts nor their content. If you are using some sort of a page builder, it may store the page contents somewhere else – like a custom field. Try maybe changing this option first: https://i.imgur.com/mtAiVTk.png
If the descriptions are printed via a shortcode it should help with that. Otherwise I assume it is stored in a meta field of some sort.
