I've lost 50% of my Garmin connections. They don't show up on my news feed anymore and I don't show up on theirs either. I've tried unfollowing then requesting to follow once again but ... no solution.
Noticed the same. Started about one week ago. Sometimes a few activities show up, sometimes not even my own. If I go into my friends profiles instead I see all activities. It is the same for group feeds, they are currently empty. Annoying!