Sorting doesn't work for the first time.. After page refresh, works fine

[Tanisha27]

I am using ui-sortable in Meteor web app. Loading dynamic data in the horizontal grid and using ui-sortable to sort the grid columns. But its not working properly. But, after I refresh the page, it starts working properly until I hard reload the page.

Code: js file

this.sortableOptions = {
			handle: '> .move-handle',
			scroll: true,
			'ui-floating': 'auto',
			cursor: "pointer",
			containment: "parent"
}

html file

<ul ng-model="editEvaluation.evaluation.sections" ui-sortable="editEvaluation.sortableOptions" class="sortable-list agile-list" >
        <li ng-repeat="section in editEvaluation.evaluation.sections track by $index" class="sections-list" ng-class="{'selected': section.selected}">
                 <div class="move-handle">
                          <i class="fa fa-bars"></i>
                  </div>
                  <div class="section-detail" ng-click="editEvaluation.selectSection($index)">
                           //section
                  </div>
          </li>
 </ul>