I’ve created a header that applies to the entire site with the exception of the home page. The posts-archive page won’t show the header with the featured image and it won’t show the title of the page which is Marketing Insights, it still shows it as Blog.
This is a staging site and password protected, however I have provided password details earlier this morning to so you can access the site to have a look.
exclude the blog from the Entire Site header. And create a new header for the blog and add your title manually. The blog doesn’t have a content title to pull from so it has to be done manually.