Empty data from a cube in a multicube

Hello,

I have a simple multicube like this :

The infoobject "0PERSON" is like this :

In OZPERS I have this kind of data :

And in 0PA_C01 :

As you can see, the person "1115" is in both but In the multicube, I have only data that come from "OZPERS". All data of "0PA_C01" is empty in the multicube but not in the cube.

Is there something to do?

Thanks,

Guirec.