Apple Watch OS10 cycling speed not syncing with Health/Strava

I installed the new OS on my Apple Watch 7 last night and tried out the new feature where you can connect to speed/cadence sensors via Bluetooth. The connection works easily, and after calibrating the wheel size, as it’s on my indoor bike, I did a 50 mins ride.

Up until now I’ve always done my spins with the Apple Watch which then syncs with health and Strava, but only the time, heart rate etc.

I now also have the speed and cadence showing during my ride in realtime, which is great, but after finishing my ride it still only syncs the same metrics to Strava as before, no speed or cadence.

I checked in health and the only metrics that shows Strava as a data share is “cycling distance”, but even that doesn’t show in Strava.

Can anyone help please?

Thank you