Edit tags with the Tags panel - no Properties popup?

I was at htis page: https://helpx.adobe.com/acrobat/using/editing-document-structure-content-tags.html

And read the section that follows to verify what I was trying to do was the right thing. My goal was changing the tag type as it was a part of a list and should read L > Li> Lbl and LBody not P.  It didn't work as #2 below never brought up a pop-up window at all. What's wrong? Is this a glitch? Thanks for any guidance. +Andrea

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Edit tags with the Tags panel
You can edit a tag title, change a tag location, or change the tag type for an element. All page content must be tagged, marked as an artifact, or removed from the logical structure tree.
Edit a tag title
1. In the Tags panel, expand the section of the logical structure that you want to edit.

2. To edit the title, Select the tag, choose Properties from the options menu, enter text in the Title box, and click Close.

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