Last.FM won't scrobble after password update

For the last few months people have been complaining about not being able to scrobble their songs after they updated their passwords. On their forums, there is no solution to this problem, and it seemed to me like they’re not even trying to fix it until I contacted one of their developers today. He explained that the problem is known and that they’re working on it. What’s going wrong is that the scrobbling server uses a cached version of your user data, so when you change the password on the website it doesn’t correctly clear this cached user data out, so the website uses the new data but the scrobbling server uses the old data. At least now we know what the problem is all about, and hope they fix it soon.