Niagara In A Child Actor

Development Programming & Scripting Blueprint
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1

I’ve created a Niagara particle system that follows a spline (kind of like electricity on a wire). But I’ve found it doesn’t work correctly when the actor is a child.

My question is: is there something fundmentally different about a child actor that stops the niagara particle system from following the spline (it just sits at the 0 length position on the spline)

2

I have the same issue.
Does anyone have an idea?

3

Can you describe the hierarchy in closer detail?

Is it Actor A (Outer Actor) with a child Actor component with Actor B that contains a Niagara Particle component and a spline component?

Perhaps this can fix it?