Version 4.77.1
Noticed that if I leave the Garmin app running in the background on my device overnight. 'Today's Activities' is not refreshing with my activities from today. Instead, it's still showing yesterday's activities. My activities do show up in the News feed and on the calendar, but not in the 'Today's Activities'. Closing the app completely, and re-opening tends to fix this issue as a workaround.