Close animate true, close without animation

Hi, I've created a new navigation window (based on new window "window1" with a custom animation on opening (from bottom to top).

Inside there's a listview with an event listener. In order to allow opening of new window, I created a tab.

When click on listview item I can open a new window (window2) with classic right-left animation. On new window (window2) just opened the navbar is automatically set with back button. Clicking on back button, I get classic left-right animation and go back to previous window (window1). But on window2 if I click on a button with the following action

window2.close({
     animated : true
});

How can fix it? How can obtain the classic left-rigth transition? On some other windows it works properly. I think that the only difference is about new navigation window created, but anyway the default back behavior works properly, so it should be possible also on my action.. I hope..

thank you