I saw this question a couple of times, but none of them were properly answered. So, I have a scene with effects node, where I attach all the one shot particles (e.g. explosions). They last few seconds, a new one is triggered every few seconds, old ones are dequeued and they seem to work perfectly... until I move camera to other part of the map and they're not visible. When I move back, they seem to stack and start playing all at once. Like they were all instanced, but then waited for me to see them. It's a very odd behavior to have by default.
So if anybody has an idea how to make it act "normal" = play when they are instanced, not when seen, I'd be glad to hear it.