For about 2-3 months ago Facebook notifications on my Vivoactive HR stopped showing content. A week ago my wife got an Vivosmart 3, and it's the same thing here, empty Facebook notifications. So I guess this is a Garmin Connect issue. Anybody else experiencing this, or has a solution?
What's your GC app version? If its 3.19+, they broke the displaying of content. Uninstall and reinstall 3.18.