Garmin Connect to Strava syncing issues

Hi, hoping you can help - I set up my new Garmin watch (Epix Pro) at the weekend and linked it to Garmin connect App, which I have always had linked to my Strava account. However for some reason when I now complete activity it uploads to Garmin connect but doesn't then sync to Strava? 

I also have Garmin 520 bike computer which was fine but has also now stopped syncing with Strava? 

I have tried to disconnect and reconnect via both the Garmin and Strava Apps a few times, and also hard disconnected / reconnected on my laptop (web based) as instructed in your advice / guidance with syncing issues - but nothing has worked.

Please advise as there is no further guidance available in such circumstances and both accounts are saying they are linked to each other?   I didn't have problem until this weekend when I set up a new Garmin watch.