Communication Site - Highlighted Content > Pages > Managed Property Empty

Thanks.  I must be missing something...

I created a 1) Site Choice Column, 2) a Site Managed Metadata column, as well as a 3) choice column to the Site Pages list and I have a grayed out Managed Property Name (same as Tyler Bankston) when I tried to filter by Managed Property in the Highlighted Content webpart.  I waited 6 hours, so I don't think its due to the site not being crawled/indexed...

If I go to Site Settings > Site Collection Admin > Search Schema, I cannot find the any of the columns I created to 'map them to an available managed property in the search schema'.

I also did the following:

• add values to those columns in the Site Pages
• went into the List Settings > advanced settings > re-index this list
• The pages are published
• I am a site collection administrator

Do I need to use new content types?  Can I just use the Page Content type?

I followed the ppt slide pages 41-44 to try to map any of the columns I created, but cannot see them when I go to the Search Schema page.