Setting Auto ACK OFF on pipe0 and ON on pipe1 makes nRF24L01+ stop sending/receiving

Question

2 arduino nodes with nRF24L01+ transceivers. Using maniacbug's RF24 library. Using pipes 0 and 1.

When I set Auto-ACK ON for all pipes rf24.setAutoAck(true): it works. When I set Auto-ACK OFF for all pipes rf24.setAutoAck(false): it works too.

But when I set Auto-ACK ON for pipe1 and OFF for pipe0 (I want pipe0 for broadcasting) rf24.setAutoAck(0,false):it stop working (no packet is received or sent). Same thing with Auto-ACK ON for pipe0 and OFF for pipe1

Couldn't find anything about it on the datasheet neither other forums nor here. Is there something I'm missing?

Test sketches (arduino):

Node 1:

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

RF24 rf24(9,8);

uint64_t pipe0 = 12312312LL;
uint64_t pipe1 = 11111111LL;

int data[2];    

void setup()
{
    Serial.begin(115200);
    data[0] = 123;
    data[1] = 456;

    rf24.begin();
    rf24.setChannel(109);
    rf24.setPayloadSize(2);
    rf24.setDataRate(RF24_2MBPS);
    rf24.openReadingPipe(0,pipe0);
    rf24.openReadingPipe(1,pipe1);
    rf24.openWritingPipe(22222222LL);
    rf24.setAutoAck(0,false);
}

void loop()
{
    delay(1000);
    Serial.print("ACK: ");
    Serial.println(rf24.write(data,sizeof(data)));
}

Node 2:

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

RF24 rf24(9,8);

uint64_t pipe0 = 12312312LL;
uint64_t pipe1 = 22222222LL;

int data[2];    

void setup()
{
    Serial.begin(115200);

    rf24.begin();
    rf24.setChannel(109);
    rf24.setPayloadSize(2);
    rf24.setDataRate(RF24_2MBPS);
    rf24.openReadingPipe(0,pipe0);
    rf24.openReadingPipe(1,pipe1);
    rf24.setAutoAck(0,false);   
    rf24.startListening();
}

void loop()
{
    if(rf24.available())
    {
        Serial.println("Got somethin");
        int incoming;
        rf24.read((byte *) &incoming,2);
        Serial.println(incoming);
    }
}