Unable to set sudo password in ud-ldap

I've attempted to use the web interface at https://db.torproject.org/update.cgi to set my sudo password. That interaction seems to work but when I attempt send the GPG confirmation, the system replies:

 got confirm for sudo password <guid> on host(s) *, auth code <authcode>
 
 Entry <guid> that you confirm is not listed in ldap.

On the web interface, the sudo password remains listed as unconfirmed.