I solved the problem by clearing the EEPROM. Then adding the 47uF CAP solved the next issue that sprung up.
Never had to clear EEPROM on other boards
Lesson learned. thanks for the responses guys
I have a breadboard with an arduino nano (funduino V.30) and an NRF240L1+ attached to it.
It also has a a DHT22 attached to it and there is a MySensors Temperature and Humidity sensor.ino running fine and reporting to node-red/openhab
However when i replace the funduino with a cheaper Nano (Gravitech v3.0) with the exact same sketch, there is a radio fail. Any Ideas please guys?