Stop particle collision event hitting specific object

So I made a blood splatter Particle system and when it interacts with a surface, it spawns a decal and plays sound at location. For testing purposes, I’m printing the physmat that the Particle collision is hitting/running on collide event bellow:

For reference, defaultphysicalmaterial is the ground, and bodyphys is the physmaterial assigned to enemies/pawns. Now when spawning decals, I’ve created an actor with said decal and set all except walls and props to ‘ignore decals’ yet the ‘on collide event’ (pictured) seems to be hitting the pawn and it slows everything down, plays the sound que so often in such little time that it literally restarts all audio.

I guess my question is, how do I stop the Particle system event from registering hits from pawns as I thought that actor collision module in the particle system only registered world static as event hits. But apparently not. Any ideas?