Quoted from RobF:Is it possible you reached the maximum EB # during the game? I *think* it's 5 by default. I am pretty sure this happened to me on my EOTL game. I lit and collected an extra ball (got the snake animation) but the shoot again inserts did not light.
This....pinball code is terrible about this. I always set my games to max 2EBs. A lot of times you get points instead of the ball, but the animation screams extra ball at people. It confuses people quite a bit.