Case studies display differently w/o "case-studies" in alias
On the Case Study list page (https://civicrm.org/case-studies), the titles in the view link to (as an example) https://civicrm.org/case-studies/texas-archeological-society (with case-studies in the URL).
However if you just try to view the node directly, the URL is https://civicrm.org/texas-archeological-society and it has the new design elements displayed correctly.