Just updated this addon through Wowup.io. I've made 3 new saved sets in the past two days, but when I go back to look at the sets later by clicking on that set name, in the viewer it shows the current gear i'm wearing and not the items i saved as that set. Redid the sets again after the latest update today, still doing the same thing.

There was a bug in the load saved set section that just got fixed, so you should be able to load sets properly after updating to the newest version.