Often, but not always the behat tests will fail ( actually get stuck ) on the sentence "Given I create a Landing Page".

What the behat tests actually do is:
#1 Login to /ez as admin
#2 Click "Page" in top menu
#3 Click "Siteaccess" demo_site
#4 Click "+ Create" button
#5 Click "Landing Page"
#6 Then the "Select a Layout" window appears, but it remains grayed and the Cogwheel rolling forever.

As mentioned this happends quite often when running behat tests

bin/behat --colors --profile studioui --tags common

But the funny thing is that have only been able to reproduce it manually in a browser once....I had firebug running, XHR tab showed no failed requests so I suspect a race condition in some javascript...?