Hi ! It looks like when I have different sources for the Black Hole type of Field (for example 3 differents lights or 3D Nulls), they attract particles randomly.
It’s weird, isn’t there a way that particles be attracted by the closest Black Hole ? Otherwhise, I would have to create a particle node and a field node for each.
By the way, even if it seems obvious when you realise it, you may should make clearer in the documentation that multiple sources for “black hole” works with 3D NULLS, I spent some time wondering why this stuff had no effect before realising it.
 
Thanks !