I installed a calendar on the form using the datetimepicker directive, but it does not always work. What could be the reason? In which direction to dig?
<div class="dropdown form-group col-md-3"> <a class="dropdown-toggle" id="dropdownStart" role="button" data-toggle="dropdown" data-target="#" href="#"> <div class="input-group date"> <input type="text" class="form-control" data-ng-model="item.recall_date"> <span class="input-group-addon"><i class="glyphicon glyphicon-calendar"></i></span> </div> </a> <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel"> <datetimepicker data-ng-model="item.recall_date" data-datetimepicker-config="{ dropdownSelector: '#dropdownStart'}" data-on-set-time="onTimeSet(newDate, oldDate)"> </datetimepicker> </ul> </div> 
