@ricorico94
From the NRF24 datasheet:
https://www.sparkfun.com/datasheets/Components/SMD/nRF24L01Pluss_Preliminary_Product_Specification_v1_0.pdf
So, you should probably choose address a bit careful.
To change base address just add a define in your sketch like this (before including MySensors.h):
#define MY_RF24_BASE_RADIO_ID 0x00,0xFC,0xE1,0xA8,0xA8
