Dear Sir,

I buy pro license https://mdbootstrap.com/product/material-design-for-bootstrap-pro/

Then I test with angluar ng-option to add option value but it cannot display option value list after click the select box.

The  below code is the html that I copy from chrome inscpection.

<div class="select-wrapper mdb-select ng-pristine ng-untouched ng-valid ng-empty"><span class="caret">▼</span><input type="text" class="select-dropdown" readonly="true" data-activates="select-options-e58ec23f-7fcf-4d7a-952d-e604656c83c6" value="Choose your option"><ul id="select-options-e58ec23f-7fcf-4d7a-952d-e604656c83c6" class="dropdown-content select-dropdown" style="width: 382px; position: absolute; top: 0px; left: 0px; opacity: 1; display: none;"><li class="disabled"><span class="filtrable">Choose your option</span></li></ul><select ng-model="selected" class="mdb-select ng-pristine ng-untouched ng-valid ng-empty initialized" name="select_user_role" id="select_user_role" ng-options="key as key.name for key in user_role track by key.id"><option value="" disabled="" selected="selected" class="">Choose your option</option><option label="Admin" value="2">Admin</option><option label="Officer" value="3">Officer</option><option label="User" value="4">User</option></select></div>

Could you please suggest me what is wrong.