Views update 2.6 to 2.7 leaves info windows on gmap views blank.

After my update from views 2.6 to 2.7 my info windows on gmap views are not working any more.

The fields to display in gmap view are title, lat and long and postal code.
Under Gmap and Gmap location, under 'marker action' open info window is activated.

However after my views update every view gmap shows empty info window after clicking on a marker.s

Is there a views setting i am missing?

Thanks in advance.