New Post: Color Picker menu not opening

I am trying to incorporate the ColorPicker into a custom UserControl in my application and I am having issues with the control not opening when being clicked on. The application I am working on takes up the whole screen, and is set to always stay on top. Could it be that the control actually is opening, but the drop down is opening behind my other items? If not, what could cause the ColorPicker to not open on click?

UPDATE: If I set IsOpen=true from clicking on another control, the ColorPicker opens, but then selecting a color or clicking the Advanced button does nothing.