After some trial and error, the error on my site was caused by another plugin – this time it was WordPress SEO. No idea why the two would interact like that, but glad to know that eliminating that plugin fixed the duplication.
It’s happening on my site too (example: http://journeywired.org/recent-messages/faith-that-makes-a-difference/) and I am not running Jetpack either. I’ve deactivated most other plugins to see if there was another causing the error but it’s still there. Any new solutions out there? I really like this plugin but if it can’t be fixed, I’ll have to find a different solution.
I’m having the same problem, but I don’t want to remove it completely, I just want it to start posting the URLs to my blog posts again. I upgraded the day the new version came out and the next post I had didn’t have a URL. Removing and reinstalling Twitter Tools doesn’t fix it.
