Lead Developer
The Blog panel will display if you’re viewing one of the blog pages (the page set as the posts page in “Settings > Reading”) or a category/archive.
I’ve reversed this in the next version, as it causes a bit too much confusion.
Make sure you’re viewing the right page and it should show up 🙂
Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/
Ongoing Development: https://generatepress.com/ongoing-development