I’ve just realized that these may not actually be duplicate posts but posts of duplicate tweets that are being tweeted again e.g via Hoosuite schedule.
These kind of tweets would appear as duplicates.
What I don’t understand though is why these tweets get fed to Facebook repeatedly – the Facebook posts are definitely duplicates as they appear repeatedly over the space of a few hours.
This probably has nothing to do with ITAP though – my apologies for that.