Cannot view "properties" for many pages under Site Map

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We have an issue we recently noticed where we cannot view the properties for the majority of our pages. (Properties that are accessed in the site map directly below Visit and above "Full Page Caching). So we cannot change any of the page names on the site. We have checked and the permissions are set correctly for the page allowing "Admin" to edit the page properties, but the properties are not even available in the site map to edit. Anyone have any insight why properties have just disappeared from the site map options? We are on 5.6.3.2

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