We have a runner on first, sinking line drive to the pitcher. Home plate umpire points to the ground saying it was not caught in the air. Runner on first advances to second. Pitcher throws to first to get the batter. I tell our runner to stay on second because the initial call by the plate umpire was it was not caught in the air. Other team asks for another opinion from the field umpire as to whther the ball was caught in the air which is granted. They overturn it and say our runner at first is now doubled off. How can that be overturned after the plate umpire signalled it was not a catch in the air which then FORCES our runner to run because it wasnt caught in the air? It was a USA tournament.