Audience Report & Dashboard Page Access Issue

Hello, I'm trying to set up audiences for an App I published with a single Dashboard, which has 4 Pages/Tabs, but the eyeball icon only shows up next to the entire Dashboard, not each Page and artifact on each page. Is there a particular setting I need to set in order to be able to do so?

According to: https://powerbi.microsoft.com/en-sg/blog/announcing-public-preview-of-multiple-audiences-for-power-bi-apps/

Step3: Create and manage audience groups using the Audience tab

... By clicking the hide/unhide icon next to each artifact, the App authors can control the access to each artifact within an App.

Can anyone help me with why I am only able to see the eyeball icon at the entire Dashboard level, and not each Page and/or artifact on the page? This means I can only share the entire dashboard or nothing at all: