I’m using the T3 Framework template on a live site. I have two templates with different menu systems assigned to different menus. The site was working correctly until I updated Joomla to 3.6.4.
Now it is only when I turn off the inbuilt Joomla SEO that the templates display correctly on the relevant menu items. With Core SEO turned on the second template does not display and it just displays the default template on every menu item.