consequences

That is why it is useful to run the scenario over and over, and speed it up so it does not take so long to complete. Because the dots start out in a color-coded direction, and because the leader is one particular dot with one of seven possible orientations, it may or may not collect ALL of the dots, ever. If you simply MUST have all the dots join the line, you can pause the run, move the leftovers about a bit, and then continue and they are more likely to get picked up then. Sometimes the line is very straight, just back and forth or up and down with no turns at all. There are usually some dots that never get caught in that case.