[Nuttyman54]

I think the robot needs to be e-stopped or disabled by the field in order for the ball to be declared dead, since a radio or cRIO reset could result in the robot becoming active at a later point if not expressly disabled. This doesn't address if the ball comes loose after the disable (eg a mechanism sags, or a forceful hit on the ball later).

The issue is not just how to determine when a ball is "dead" but also deal with what happens if the ball returns to play, since the game is only designed to track one ball at a time in teleop.

I think with how rarely a ball will get stuck on top of the truss, the best recourse is to declare a field fault, similar to jammed nets in 2012.