Regarding StartupProject with macOS (10.13.6) I do not understand what is going wrong.
cf . https://github.com/mbientlab/MetaWear-SDK-iOS-macOS-tvOS/blob/master/StarterProject/macOS/ScanViewController.swift
Scan works very well but impossible to get LED on or OFF...
Indeed, it looks like if "device.connectAndSetup().continueOnSuccessWith" was not working with macOS... not even an error...
It looks strange as device is well selected after double-click ; device.name value corresponding to the selected row.
Thanks for your attention
NB : my 3 metamotion-R are running with version 1.4.2 and are running perfectly with iOS 12.