recently i was working on heightfield scatter
what i do is input three different geo with weight parm to scatter
what i found out interesting is that the averge size of result is in order of the third, the second and the first(from the biggest to the smallest)
no matter the weight you set to geo, just the order directly influence the size


then i checked the vex in node
is because the point is set the same parm 'pscale' and 'generated_rand'(is used to define which geo will be copied to the point)

just want to know is a bug or exactly designed for ?