[Limacon2]

Bases loaded one out. Deep fly ball to centerfield. Runner at 3rd tags properly and scores. Runnner at 2nd does not does not tag and advances to 3rd base. Defensive team appeals to 2nd base long after the run has scored. Umpire calls the runner out who was at 2nd base. Umpires disallow the run. Does the run still count? NFHS Rules. Please provide rule reference and case book reference.