Greetings!
White particles sometimes trigger events properly (on collision - red particles are being spawned and white ones killed), but sometimes they do not.
What could be the problem? I tried slowing them down, speeding them up, making them larger. The only way to make them collide properly is to spawn them all at once (burst instantaenous) as opposed to running emitter several times with loop delay for 1 spawn burst (as shown in video). Spawn rate does not work either.
I am attaching video that displays the problem.