Missing Layout Options
If you are using an older version of Genesis with Wordpress 4.7 or later, your page layout options may be absent.
How to Restore the Layout Options
To resolve the issue, you'll just need to update the Genesis Framework. You should see a link at the top of your Wordpress dashboard where you can update Genesis.
If you don't see a link to update, go to Genesis > Theme Settings in your dashboard. Under Updates, turn on "Check for Updates." After saving, the update link will appear.