Ciao ​@jstubbington. Is your first activity at all or are you just referring to golf? If it's your first activity have you checked if your garmin account has been properly connected to Strava?

Hi ​@Vincenzo - no I upload rides, walks & swims regularly. This was my first golf activity - I could see it in Connect and Garmin Golf but no upload to Strava! Today it doesn’t appear as an activity in Connect - I can now only see it via the Golf app