cull points from population

Hi, everyone,

I'm trying to do the simple thing, but something goings wrong with it.

I have some volumetric geometry, I need to insert some point in it, so I used "populate 3d".

But, subsequently I want to work only with points that are inside the brep, but not on it.

I'm trying to use "points in brep" botton, but in the result it includes every points.

so I need some help)

Thanks

p.s. english is not my native language, so sorry for mistakes