multiple nrf24 sending data to one master

Hi,
I try to setup multiple connection, set the pipe2 address on master as

 >nrf.setRXAddr([0,0,0,0,3],2)
=undefined 

but it answers

 >nrf.getAddr(0x0C)
=[0,0,0,0,0]

and

>nrf.setRXAddr([3,0,0,0,0],2)
=undefined
>nrf.getAddr(0x0C)
=[3,3,3,3,3]

why it set 3,3,3,3,3 instead of 0,0,0,0,3 ?
ewerithing is ok with pipe 1 at the same time...

 >nrf.setRXAddr([0,0,0,0,2],1)
=undefined
>nrf.getAddr(0x0B)
=[0,0,0,0,2]

what can be wrong?