When you create a new category and make the featured article, it still doesn’t show on front page. I experienced this issue in Joomla 3.0 and spent almost an hour to fix this. You can try below options.
Login into Joomla Administration
- Click on Menus>>Main Menu
- Open Home Menu and ensure its Type is “Featured Articles”
- Click on Advance Options tab and ensure you have selected your desired categories or All Categories under “Select Categories”
- Click on Save and close
- Refresh your homepage to verify your Featured Article appear on front page.
This has helped me and I hope it will you too.