[Plugin: Custom Widget Area] My main sidebar got disabled!

I just found this too. I am using 3.4.1. I first tryed to edit functions.php with more or less the same code. It de-activated my other sidebar widgets; or at least the editor on the back end. I found that if I configure my other widgets, then include this widget, it retains my other widgets but I can’t edit them… Hopefully, someone has some additional information on what might be causing this.