As the title says.
Let's say my player jumps in water so I give its sounds a low-pass filter effect...but my player is also in a large cave so I give its sounds a delay effect as well.
My player then jumps out of the water aaaaand...I can only remove all the effects, not just the low-pass filter from the water.
I suppose I could just reapply the delay from the large cave every time my player exits the water but that's not applicable for all cases and I think that would cause a "judder" in the delay effect anyway.