In T163067#3289104, @Aklapper wrote:

Going to https://phabricator.wikimedia.org/dashboard/arrange/1/ and clicking "Add Existing Panel" at the bottom and entering W647 in the field shows no results.
This behavior is annoying.

In T163067#3289369, @mmodell wrote:

This works on my test instance, however, even after reindexing all dashboard widgets I still can't find that one in the search...