Goodies are posted as the version 1 of whichever release they belong to. If you install them after you've installed a hotfoot for that version, you should reapply the hotfix again to make sure they are brought up to speed.
I don't know if that will solve the problem. it's an annoyance, but that's the way it goes sometimes.
also check the Add-Ons Manager to see the Check Duplicates is there and if it's activated.
Think Like a Spec Writer
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