Dynamic Multi-select on QLI will not store selected value/s, though it says it saved.

SugarCRM 7.9 Quotes

I have a dynamic multi-select in Products, the items are retrieved appropriately and the dropdown values display and are selectable. However, when I save, the selected values are not saved in the database although there are no errors in the sugar log, the php log or the console.

custom/modules/Products/clients/base/fields/enum/enum.js

({
  extendsFrom: 'EnumField',
  initialize: function(options){
    this._super('initialize',[options]);
  },
  _render:function(){
    this._super('_render');
  },
  //this is also triggered by an on-change event on the ProductBundleQuoteDataGroupListView
  loadEnumOptions: function(fetch, callback){
    var self = this;
    if(self.name == 'discounts_c'){
      this.isFetchingOptions = true;
      this.items = {};
      var currency_id = this.model.get('currency_id'),
          part_num = this.model.get('mft_part_num'),
          discount_url = app.api.buildURL('ERPDiscountProgramsLookup/'+part_num+'/'+currency_id);
      app.api.call('GET', discount_url, null, {
        success: function (data){
          if(!_.isEmpty(data)){
            var discounts = JSON.parse(data);
            _.each(discounts, function(val){
              self.items[val] = val; //set the individual items for the dropdown
            });
          }
          self.isFetchingOptions = false;
          callback.call(self);
        },
        error: function(e){
          self.isFetchingOptions = false;
          console.log(e);
        },
      });
    }else self._super('loadEnumOptions', [fetch, callback]);
  },
  _dispose: function() {
    this._super('_dispose');
  }
})

 

Any thoughts on why it won't save the selected values?

Thanks,
Francesca