NRF24L01+ crashing with ATTiny 84

I have two ATTiny 84 with NRF24L01+ connected to them using MIRF library. When I ran just one everything works fine.
I can read the data sent from and Arduino Uno with NRF24L01+ connected and I can also read the data sent from the ATTiny via serial.

But if I power up a second ATTiny with NRF24L01+ connected running the same sketch with only different node id and RADDR they crash. I get one OK reading from each them only garbage data once and then nothing. Serial does not output anything either.

Any ideas?

attiny84_mirf.ino (5.33 KB)

arduino_mirf_ds18b20.ino (3.13 KB)