2. Term Entity Reference Field Settings
You will be redirected to the Field Settings tab.
Target Type select field = change to Taxonomy Term.
Mode select field = leave it set at Simple.
Target Bundles checkboxes = select all of the Taxonomy Vocabularies you want to display in the reference field.
Sort By select list = select A Property of the Base Table of the Entity.
After making a selection in this field, new fields will appear beneath it:
Sort Property select list = choose Name.
Sort Direction select list = choose Ascending.
Render Views Filters as Select List checkbox = check this.
Click the Save Field Settings button.