Please check that the watch app has also been updated. To do this go to the Settings and tap More and then scroll to the bottom. If it does not show v6.0.14 then please go to the App Store app on the watch and update it from there.
If it is not possible to update the watch app using the App Store on the watch then use Apple's 'Watch' app on the iPhone to uninstall and reinstall it. Note that this will lose the data on the watch app so you will need to send it from the phone app to the watch app.
To do this go to the Settings tab and tap 'Storage & Transfer' and then 'Send Yesterday's Watch Settings', 'Send Screens to Watch' and 'Send Interval Schedules to Watch'. If you want then you can also send routes or workouts individually. They can't all be sent at once because they are too large.
Thanks for your reply. I thought I was running the latest version on my watch, but clearly not. I uninstalled and reinstalled and all working great now.
Thanks for a great app.