Watch Face Settings Not Showing on Garmin IQ - IOS

I have until recently been able to amend the watch face settings of watch faces added to my Fenix 5s by either going through Garmin Express, Garmin IQ or via the Garmin Connect app on my iPhone.

However when I now go to any of the downloaded watch faces, and open the settings tab (it will open) there is only a blank white page, the 'Save' button is greyed out!

Is anyone else experiencing this issue or know a workaround.

Thanks