Some users have reported this issue where all templates have an Active status in PowerPack settings page. But, none of the templates are visible in the Page Builder. This issue comes up due to some misconfiguration in template settings.
To fix this, simply Deactivate and Reactivate PowerPack plugin from WP admin > Plugins page. After this, go to WP admin > Settings > PowerPack > Templates and activate the templates that you need.
If you have any problem even after following the above method then email us and we will be happy to assist you with this.