Parameters not working in cube views

Hi all,

I'm having a strange problem with cubeviews. 
I created some parameters to apply a standard formatting to my cube views:

when I use them into the cubeview and I launch it, though, they appear in the initial popup without any value, as if they were user input params:

am I missing something? is there anything I need to configure to make them work automatically?

Any help is appreciated!