In UDK, i have set a rain particle to collide and spawn splashes, in the editor this works and load for one frame in play mode, i am wondering what is causing this and how i fix it?

99192-13617631_832777573490820_1618406812_n.jpg

i have supplied you with images of the editor and my parameters for the particle
please help!

This is an ue4 answerhub, not a unreal engine 3 (udk) one.

also, those camera-shots of your monitors dont help either.