CMS filtering works on one page and does not work on another page

So I am using this guide from Finsweet: CMS Filter for Webflow - No-code using Attributes

And to give some context, I have to create two podcast pages: one for video clips and one for audio only. And I need to put CMS filtering on both pages so users can search for topics and categories. I created the video clips page first and the cms filter worked. But when I created the same for the audio page, it only shows an empty list. I am not quite sure if it is the attributes that needs to be fixed or something else.

Read-only-link: Webflow - Dudley Land