Hello @virtualuser,

First of all thank you very much for using the theme.

The slider may not have displayed at the front page may be because you have not uploaded the image in the featured image section of the Post/Page. To make the image appear on the slider you need to upload the image in the featured image section of page /post as the image in the slider comes from there.

Screenshot:
http://prntscr.com/lmyy7t

Also, to make the section appear in the front page you need to manage the homepage setting.

For this go to Admin Panel > Appearance > Customize > Homepage Settings and set the “Your homepage displays” to “A static page” and select the pages for the front page and blog page.

Screenshot:

https://prnt.sc/lmyxuh

Hope this helps.

Regards!!