I have two sets created on my warrior;

• Shield
• DualWield

Using the macro;

/itemrack toggle Shield, DualWield

When I first used ItemRack the other day, this macro worked just fine. Now when I use it, it will gladly put me in Shield, but will not swap back to DualWield. I don't get any error messages either, it just doesn't work... I can still manually swap to both armor sets via the minimap button as well.

I was having the same problem as @nforbus after downloading the latest from wowinterface.com, and using your latest github version fixed this for me.

what version did you test?
I just tested the newest version from github and it works for me.

3.10 - I will also try out the version jnday referred to and see if it fixes it.

Does it work?

Retest with 3.15.