query incompatibility from Splunk upgrade to 7.1.1: set intersect command.pivot not working

I have a below query which is working perfectly fine in splunk 6.6.4 after upgrading to new Splunk version 7.1.1 , the query is showing now result found. This is a multi select drop down. | set intersect [| pivot ticket_feed_dm ticket_feed_obj SPLITROW current_ticket_state | eval current_ticket_state = trim(current_ticket_state) | table current_ticket_state] [| inputlookup ticketState_lookup | search Category = $res_un$ | rename Sub-Category as sub_category | eval sub_category = trim(sub_category) | table sub_category] Any leads would be helpful.