Fix when rpc has no 'exc' but has 'xid'
Fix when rpc has no 'exc' but has 'xid'

whowutwut/confluent,jjohnson42/confluent,whowutwut/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent,whowutwut/confluent,jjohnson42/confluent,jjohnson42/confluent,whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,jjohnson42/confluent