Hi guys, I usually keep the font-awsome plugin activated but the enable menu set to no or it mucks up the menu css. After installing the latest version I noticed that my sites templates went awry. The default template has no header image whereas on some pages I have the same template but with a header image included.
With the plugin enabled only the default template is used whatever is assigned to a menu item. Disable it and all works correctly. If you turn off SEO Urls in the admin area the templates work as normal with the plugin enabled.

Joomla 3.8.2 Php 7.1
Template designed with template toaster.

cheers,Mike