Overrule?

[Blue37]

5 man crew, 15 seconds to go in the game. B leads 21 to 17. A has the ball on B1, 4th and goal. They run a QB sneak, and the QB is stacked up at the goal line and pushed back. R, U, and BJ cannot tell whether he scored. L goes up with the TD signal but LJ signals him down short of the goal. You are the R so you huddle with the crew. Now remember that neither you, the U, or the BJ have anything to offer as to whether the QB scored. Both your endmen are adamant that their call is correct and neither will back down. How do you resolve this without overruling one or the other?