Steps to Reproduce:
1. Add a Blogs Portlet to the page via the "Add" ( + ) button.
2. Click the Blog Portlet Ellipsis/Kebab menu.
3. Click "Look and Feel Configuration"
4. Change "Application Decorators" to any selection > Click Save
Clicking Save updates the Application Decorator and remains on the same "Look and Feel Configuration" pop up.
Clicking Save displays a warning message saying "You do not have the roles required to access this portlet." The Success message on the bottom left still appears and the Application Decorator was updated to the one selected.
Tomcat 9.0.17 + MySQL 5.7 126.96.36.199 DXP SP1