I have a problem using this on MacBook Pro Sierra 10.12.3. I get the following message: A JavaScript error occurred in the main process Uncaught Exception: TypeError: pollPuffDatapoints.forEach is not a function at Timeout.pollPuff [as _onTimeout] (/Applications/dna-monitor.app/Contents/Resources/app/main.js:447:24) at tryOnTimeout (timers.js:232:11) at Timer.listOnTimeout (timers.js:202:5) It then loads the program, but shows no data.Thanks,Las Vegas