RF24Network leaf node acknowledgment

I've had a few nRF24L01s running for a while with the RF24Network library and they work great. I couldn't get a signal on a new one I added last night so decided to try adding the new one as a leaf node.

I'm sending a signal from my Pi and even without the leaf node active, the Pi responds as if the message has been delivered. I read something in the documentation about this being old behaviour so I updated the libraries on the Pi and the Arduino.

Is there a way I can get the response from the leaf node and not the one in the middle?

Aha! Changing the type in the message header seems to have sorted it. Great!