Search Script working in Debugger but not when fired as a workflow action

@208cfbfc

All,

I have a script which works fine in debugger and as a workflow action when values are populated in the fields, I am currently trying to alter the script to allow for a multiseelct field to have no value. in debugger that field appears as null, but when I run it via the workflow action it has the value '[Ljava.lang.String;@208cfbfc', this is obviously then breaking the if condition which allows the filter to be skipped if null.

Why does the value between debugger and workflow action differ so much? 

/**   * Workflow Action Script   *   * @appliedtorecord    * @returns {void} may have a return value   */  function UTR_Find_email()  {            var newRec = nlapiGetNewRecord();            //For Testing Purposes      //var newRec = nlapiLoadRecord('customrecord_user_event_record',2);            var disabilities = newRec.getFieldValues('custrecord_usr_evt_disability');      var AccessTechnology = newRec.getFieldValues('custrecord_usr_evt_access_tech');      var Testertype = newRec.getFieldValue('custrecord_usr_evt_tester_type');      var DayAvailability = newRec.getFieldValue('custrecord_usr_evt_day_availability');      var TimeAvialbility = newRec.getFieldValue('custrecord_usr_evt_time_availability');        nlapiLogExecution('DEBUG', 'disabilities', disabilities );              var search = nlapiLoadSearch('customrecord_user_testers_record','customsearch_usr_tstr_rec_search');        //Define search Filters      var i = 0;      var filters = new Array();      if (disabilities != null)                {          filters[i] = new nlobjSearchFilter('custrecord_usr_tstr_disability', null, 'allof', disabilities);          i++          }      if (AccessTechnology != null)          {          filters[i]  = new nlobjSearchFilter('custrecord_usr_tstr_access_tech', null, 'allof', AccessTechnology);          i++          }      if (Testertype != null)          {          filters[i]  = new nlobjSearchFilter('custrecord_usr_tstr_tester_type', null,