Flexbox equal vertical split stopped working

After updating from beta9 to beta11, the flexbox split into two equal parts of ion-content stopped working.

Here what it should be with only two sass elements:
http://www.joshmorony.com/an-in-depth-look-at-the-grid-system-in-ionic-2/ (see the section Using Flexbox with the Grid)

.home {
    scroll-content {
        display: flex;
        flex-direction: column;
    ion-row {
        flex: 1;

Does anyone experience the same? Any solutions?

Confirmed that it is intentional change https://github.com/driftyco/ionic/issues/7725