Doubling of output

I saw duplicated results in one of my Views, which was sorted by Draggable Weight.

First thing I tried, just for fun, was turning on 'Distinct' in the View settings 'Other / Query Settings'. This had no affect. In the issues queue I see similar postings, but they had tripled results and there was chatter about patches etc etc which I really dislike. Some people mentioned re-installing the entire module and the issue got cleared up.

Playing around, eventually I found that if I just simply REMOVED the Draggable Weight sorting and re-added it (with defaults) and saved the View, it cleared the situation up and everything seems to be working fine now. I'm only beginning my gallery framework for the next few days so I'll keep an eye on it and see if it breaks.

If it means anything, I am using a bunch of things like contextual filters, node references, attaching the View to nodes (with EVA), etc etc. Essentially I'm following this tutorial video, but for Drupal 7 and with the addition of Draggable Views.