Hello @MarcRice1 

Sorry to hear of the syncing issues.  Were you ever able to get those to sync?  

When this situation occurs, it's usually because you didn't have sufficient reception during the time of saving the activity, that may cause issues with syncing once saved.

In this case, can you please force quit both the Strava watch app and the app on your mobile device?

To force quit the Strava app on your watch, press and hold the side button until the shutdown screen appears, and then press and hold the digital crown until the app closes. You must be in the app to force it to close.

Let me know if that helps.