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Change particle color on Other Blueprint and on self at the same time

Hello ,

I am new to unreal and am working on a VR game

I have a torch that the user is holding.

I enter a room with a candle on the wall to ignite with the flame of my torch

now, the flame on the candle is blue and i want it to color my torch when i ignite it with the same color blue

I can get the torch to ignite the candle with the blue color but my torch doesnt change its color to blue it stays the same…

I added parameters to the torch’s fire particle system for scale color / life and created a custom event that gets the color as input parameter and sets it on the particel’s param

But the color doesnt change…what am i doing wrong ?

I would highly appreciate any help !

Thanks and sorry if this has been asked before