swift cant get beacon - ios

Question

Have a project from 2 yrs ago that I just updated from swift 3 to 4. No real significant changes other than the plist getting new permissions. Ran the app on a real device and the beacon isn't being found. UUID, major and minor all verified numerous times to be valid and correct. BKON beacon is sitting next to phone.
plist is like so
location manager is setup like so in viewDidLoad
var locationManager:CLLocationManager!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
print("locationManager setup")
locationManager = CLLocationManager()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
locationManager.delegate = self
}
Region/beacon setup
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
if status == .authorizedAlways {
if CLLocationManager.isMonitoringAvailable(for: CLBeaconRegion.self) {
if CLLocationManager.isRangingAvailable() {
setupBeacons()
}
}
}
}
func setupBeacons(){
print("setupBeacons")
if let beaconUUID = UUID.init(uuidString: "58de905b-3b54-bf9d-2d01-4dc018eaf6cc") {
let region1 = CLBeaconRegion(
proximityUUID: beaconUUID,
major: 998,
minor: 1330, //2121
identifier: "Crossing1")
region1.notifyOnEntry = true
region1.notifyOnExit = true
region1.notifyEntryStateOnDisplay = true
startMonitoringBeacon(region: region1)
}
}
func startMonitoringBeacon(region: CLBeaconRegion){
locationManager.startMonitoring(for: region)
locationManager.startRangingBeacons(in: region)
}
I then have the delegate call back set like so
func locationManager(_ manager: CLLocationManager, didRangeBeacons beacons: [CLBeacon], in region: CLBeaconRegion) {
print("didRangeBeacons: found \(beacons.count)")
}
But no beacons are ever found. No errors or anything in the other delegate methods (rangingBeaconsDidFailFor, monitoringDidFailFor and didFailWithError). I've already tried removing all beacons from the locationmanager, uninstalling, reinstalling the app numerous times and rebuilding the app from scratch.
Is there something I am missing?