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www.harptabs.com]
Compare the fav count to the list of users who fav'd it. I know it takes a day for the system to update it, but I gave it several days. Think I may have given it a week. And that's just since I found it.
I have no way of knowing if it's just that one song or if it's happening to all of them, or if it's only affecting a certain number or what. This is just the one I found.