Niagara user parameter is not visible in BluePrint -> UE5.2 & C++

Niagara user parameter not visible in blueprint when using C++.

Everything is correct in a pure blueprint.

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Niagara User Parameters does not appear if instantiated from C++.

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Declaration:

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implementation:

I can access it using C++ like this, and it works.

But from the blueprint I can’t edit it.

I am doing something wrong?
Is it something normal?
Or is it a bug?

Thank you so much!!

I have the same problem and there is no info about it. Looks like it’s a UE5.2 bug or something like that.
C++ component:
image1

BP component:

i think it is a bug too… work in C++… definily is better

Still occurring in UE5.4.2

UE 5.4.4 have the same problem