I left out the most important part of the terminal output:
ERROR: -- Exception: -- ERROR: Traceback (most recent call last): File "/usr/local/Cellar/chirp/20180316/libexec/lib/python2.7/site-packages/chirp/ui/clone.py", line 247, in run self.__radio.sync_out() File "/usr/local/Cellar/chirp/20180316/libexec/lib/python2.7/site-packages/chirp/drivers/yaesu_clone.py", line 241, in sync_out _clone_out(self) File "/usr/local/Cellar/chirp/20180316/libexec/lib/python2.7/site-packages/chirp/drivers/yaesu_clone.py", line 160, in _clone_out raise errors.RadioError("Failed to communicate with the radio: %s" % e) RadioError: Failed to communicate with the radio: (9, 'Bad file descriptor')
ERROR: ---------------- ERROR: Clone failed: Failed to communicate with the radio: (9, 'Bad file descriptor')