Ours is a WP hosted website. We have given our site title which reflects across all the website page title suffix. Like "Moz SEO" will be default at the title for pages like "Local SEO - Moz SEO".
We have given different page title suffix to our sub-folders' pages like blog and help guides. For blog we have given "Moz blog" as title tag suffix which was working fine. But Google suddenly started showing main website's title as suffix in pages of sub folders. Ex blog: "How to rank better - Moz blog - Moz SEO". Here we can see "Moz SEO" has been added which is not required. How to handle this?