*"It doesn't belong here or is a duplicate"* flags (which are only available as long as you cannot [*vote to close*](https://superuser.com/help/privileges/close-questions)) [aren't sent to the moderator flag queue anymore](http://meta.stackexchange.com/questions/186955/was-this-flag-lost-somehow/187008#187008), but to the *close votes* review queue.

Your close flags will probably be active until the associated, unhandled review entries ([example](https://superuser.com/review/close/140447)) are either accepted or declined by enough reviewers. The queue right now contains over 500 questions, so it might take a while, but there are [several very active reviewers](https://superuser.com/review/close/stats), so it shouldn't stay active indefinitely.