Hi, create a newsletter using the drag and drop composer. In the footer the is the “profile”. Send a test and use the link in the newsletter you receive: the profile page opens with the unsubscription link, if you are using the default settings for the progile page.
Or, change the profile link to be {unsubscription_confirm_url} (as is). Send a test and click the link in the newsletter you receive. You should see the goodbye message.
If not let me know what is actually appearing, since the defaults in your bog has been changed.
Stefano.