I'm a long-time follower and an occasional poster -- have learned a great deal from this umpiring forum ... especially the difference between a timing play and a force out. That being said, here's a scenario I'm curious about:
1 out: R1 & R3: batter hits fly to F8 which is caught. Both runners tag. But R1 left early, and the defense correctly appeals it (after R3 has scored) -- and R1 is ruled out. Does the run count?