Not allowing save and will randomly switch sets

[Brodieman]

Sometimes when I am shuffling things (even random items not part of a set) IR will switch sets. Now I cannot save unless I reload the UI. Next time I try it will not save until I reload the UI again.

I am using ItemRack Classic from CurseForge.

https://www.curseforge.com/wow/addons/itemrack-classic