refreshing wbr-pivot in angularjs environment. Does not work

Hi,
My application is using angularjs with webDatarocks. I’ve followed your tutorial. My approach has been this way.

<div >
   <div wbr-pivot wbr-toolbar="true" wbr-report="wbr_templateId" ></div>
</div>

The wbr_templateId is a variable ($scope.wbr_templateId) that I update in my angular controler.
My problem is that when I update $scope.wbr_templateId in my controler the wbr-report is not updated.
I’ve tried to enforce a $scope.$apply() but angularjs complains telling that $apply is already running
So I don’t know how to force a refresh of wbr-report
Thanks a lot for your help and support
Regards