Android 6.0.1 + Nexus 5 + ngCordova Calendar not working

Hi guys! I’m using the Calendar plugin on ngCordova and I have no problems in iOS and some versions of Android. The problem is that we are testing our app in a Nexus 5 with Android 6.0.1 and when we add the event to the calendar, everything seems to be ok, it goes through the success callback, but the event is not added to the calendar.

     //lots of stuff above...
      title: title,
      startDate: startDate,
      endDate: moment(startDate).add('1','h')
    }).then(function (result) { //this function is called...moar stuff below...

Do you guys have any hint ?

Thanks in advance!!