Hello @BenWest89 

Sorry to hear about the syncing issues and thanks for the post.

Can you please try resyncing the activities?
 

• Open the Strava App on your watch


• Click on 'Settings' at the bottom of the screen


• Tap the 'Unsynced' button to force sync any unsynced activities

If an activity fails to sync to your Strava account, please ensure you do not have any duplicate recordings. You will need to delete any activities that are already on your account for that date/time. If this is not the case, please send us a photo of the activity that is failing to sync and any error messages you may see. 

Let me know if that helps.

No this is not an issue with "unsynced" activities. Activities completely go missing!

Happened to me twice on this week, on important walk and mountain bike ride.

I complete the activity on the watch, and it simply vanishes from then on. If I retry a test activity soon after, it saves. So the bug is possibly random.

I use Galaxy Watch 6, paired with Samsung **bleep**, on Strava paid version. If it helps.

Great. Seems like "Samsung A.5.5." is sensored.

I had the same issue today. Using a Galaxy watch 4. Finished the activity on the watch ( disabled battery saving mode on watch and phone before I finished the activity on the watch. Saw a short message "open on phone" and nothing appeared in stava. Went to settings on the watch and "Not synched" displayed "0".