You'll probably find that most of the plugins may break as they may have been using the VARIABLES_LOADED event that nUI used to do its settings. I have changed my addons that had this problem and so did Scott.
Was that the mageports version that I updated the other day ? Well, I guess it must have been if it was visible
I'll play around with my mage and see if I get the same problem. Not played with her in a while so who knows.