We are seeing a new problem with WordPress and the Subscribe2 plug-in that began happening after the recent automatic update for WordPress.
When a non-registered user subscribes using the Subscribe2 widget two entries appear in the Subscribe2 subscribers list. Subscription seems to work properly but we have duplicate entries in the list. The first entry appears to be created when the user enters their email address in the widget, the second entry when the click the confirmation link in the email generated by Subscribe2. Somehow additional entries (third, fourth) can also get created, though I'm not clear on how this happens.
More troubling is that the unsubscribe feature in the widget now does not work at all. Attempts to unsubscribe are met with a message saying the user's address is not in the database.
Does anybody have any ideas?