Lobby homepage: unable to select GOLD and SILVER Sponsors as "Featured sponsors"

Hi everyone 👋
I try do display several “Featured sponsors” on the lobby homepage.
I can only see PLATINUM Sponsor in the setting list.

I cant see GOLD and SILVER sponsors although the documentation mentions “The Edit featured sponsors panel will appear containing a list of your sponsors categorized by tier.”

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0058086

Thanks for helping