That's the only one on the list that I have seen specific issues listed for. I dont use it myself, so I'm not sure. Try disabling WIM on your addon screen in game and see what happens. They may be conflicting somehow.
*EDIT: Out of curiousity, why do you need GFW Feed O Matic, it's built into nUI. The pet happiness icon on the pet frame doubles as a feed pet button when you click on it
