So I’m using a slightly modified version of the birds blueprint and particle system from the Landscape Mountains demo and I can’t seem to fade out the particles using the built in Spawn Rate Multiply variable. If you place the blueprint in your level and adjust the Spawn Rate Multiply it works fine. If I set the value to 0 for example, it turns off the birds and if I set it to 2 it makes twice as many. However, I’ve referenced it in the level blueprint and using a timeline I’m updating the value from 1 - 0 over 5 seconds and its not stopping the birds from spawning in game. I’m a little confused as to why this isn’t working.
Here’s a video of the float value clearly being faded to 0 and yet it has no affect on the rate of the particles.