Import Thwack Community Pollers - name/password incorrect

NPM 12.2

All settings --> Manage Pollers

This area allows you to manage pollers on your installation.   There is a separate tab that allows you to IMPORT Thwack Community pollers into your system.   When I choose a poller to import, it prompts me for my Thwack username and password, which I provide (correctly).   Then it just tells me that my username and password are incorrect.   Do I need to have some sort of special access to import these community pollers?  The same username and password allowed me access to the Thwack forums (obviously) so what am I doing wrong?

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