Solution
There has only been full testing and development for the Arduino Uno and Mega 2560.
Though the toolkit has been used with other Arduino boards, only the Arduino Uno and Mega 2560 are officially supported by the Arduino Interface for LabVIEW.
If you do want to attempt to use another board, remember to choose the correct board in the Arduino IDE so that the Arduino I/O engine gets compiled down for the right board.