When I duplicate a dashboard, every question’s title has a suffix of ‘ - Duplicate’. That means having to edit every question to remove the text!
this is latest release but was there in 48 too.
Questions must have unique names in the collection even if they are saved in the dashboard; they’re still part of the “collection.”
In the Duplicate dialog box there is a checkbox at the bottom to “only duplicate the dashboard.” The questions in the new dashboard will have the same name, but they are also links to the same questions and not new copies of the questions (thus why the questions are - Duplicate named).
There’s nothing stopping me renaming every question in the dashboard to the same as they were previously.