Problems with Google Indexing & Blog Posts

Hello I have questions concerning 2 different issues..

1. Google Search Console Index Satus
While the Google Site Search shows about 70 results, the Google Search Console says that only 1 URL is indexed:

We use the YOAST SEO plugin, all sites including the homepage have the robots meta index,follow,noodp
The xml sitemaps provided are indexed as they should. Do you have any tip for us?

2. The Enfold Blog Feature
We use the Enfold Child Theme.
We created a category named “blog” which contains only the “real” blog posts.
If we set a specific page for the blog feature in the Enfold Theme Options, in the main navigation / mega menue the active posts (from other categories) are not highlighted but always the blog.

Our solution for the moment ist to not set a specific blog page in the options and to use our own blog page (Newsblog) in the main navigation. This results in when having a blog post opened, the “Newsblog” in the main navigation is not highlighted because there are different URLs now:
Blog overview page “Newsblog”: http://www.domain.at/newsblog
Single Blog post: http://www.domain.at/blog/post.html

Is there a solution to use either a specific blog page in the settings or using our method and get the highlightning correctly?

Many thanks in advance,
Herr Doktorweb