Masking disables text input?

why is it whenever i put an input text field under a mask, it seems to automatically set visible = false; ???

i know it’s there, because the mouse turns to a cursor over where it should be, and if i create a dynamic text field with the same variable name outside the mask, as i type in the input filed the letters will show up in the dynamic field…

anybody know how to get input fields to show up under a mask?