override the onKeyEvent doesn't work

[Allan-Nava]

I added in my ProfileViewLogic.brs

function onKeyEvent(key as String, press as Boolean) as Boolean
    handled = false
    ? "ShowChooseProfileView key= "; key; " press= "; press
    if key = "back" then
        print("onKeyEvent - back")
        handled = true
    end if 
    ? "handled "; handled
    return handled
end function 
'

but doesn't work and it calls 

SGDEX: View Manager runProcedure closeView
SGDEX: fire close for this View
SGDEX: Showing previous View
signinpage key= back press= false
ShowChooseProfileView key= back press= false
onKeyEvent - back
handled true