Answered
Puppet-warp Help page is MISSING
I just downloaded the revised AI 2019 (oddly the same version number as the one that didn't work).
In attempting to learn more about the updated "puppet-warp" I clicked on the link, but the page is missing.
https://chl-author-preview.corp.adobe.com/content/help/en/illustrator/using/puppet-warp.html


