Ionic animations not working on a single page

ionic-v1
1

Look at:
http://bit.ly/whaamapp

I have the following problem:

There is no animation on main page (after the login page) - while there is everywhere else:

<ion-nav-view animation="slide-left-right"></ion-nav-view>

Main page (with animation bug):

<ion-view title="{{navTitle}}" hide-back-button="true">
        <ion-content padding="false">

The login button function

$scope.signIn = function(user) {
            $state.go('main');
        }//end function

Any ideas?