Latest update ( Dec. 13 ) need some front-end page settings to work
Please note that this update has a small difference in setting up comparing to what’s in the documentation from the themeforest package:
The difference is in order for the homepage builder to work, you first need to create a Page with the ‘homepage’ template selected. Then under settings > reading at ‘front page displays’ you select ‘A static page’
Front-page select the homepage with the homepage template and the posts page another page you create at pages to have a regular blog page with all posts.