Problem with mousearea

[RanmaRanma]

Hello,

I have an imagebutton you can click that calls this screen. I want it to where if you move off the area, the screen closes itself. When I run this code, the game freezes and control is not given back to user. The other screens hide and nothing works anymore. Why is this happening?

screen phone:
tag menu
add "phone.png"

mousearea:
area (400, 400, 1000, 1000)
unhovered Hide("phone", transition=dissolve)