Index statistics page is not showing correct results

When trying to access: https://docs.couchbase.com/server/current/rest-api/rest-index-stats.html, Found the following content: 
 

Unresolved include directive in modules/rest-api/pages/rest-index-stats.adoc - include::partial$index-stats/overview.adoc[] Unresolved include directive in modules/rest-api/pages/rest-index-stats.adoc - include::partial$index-stats/paths.adoc[] Unresolved include directive in modules/rest-api/pages/rest-index-stats.adoc - include::partial$index-stats/definitions.adoc[] Unresolved include directive in modules/rest-api/pages/rest-index-stats.adoc - include::partial$index-stats/security.adoc[]
 
The expected content is to list the API and output of index statistics API