Hi James, did this resolve the issue? I put the code in, but have not had enough new posts to really know for sure if it’s fixed yet. The duplicates are 3-4 times per day for me, but not with every feed update.
At first I deactivated this plugin… yet the Share button remained on my blog. Then, I uninstalled it completely. The button still remains. What’s going on? Have never seen anything like this with a plugin. If I can private message you my site URL, that’s be preferred.