I am not sure if this is even a question, but an issue I've noticed: adding featured content to a group will not always stick. I would say ~85% of the time it works as it should, but that other 15% I will select an item to show up in the overview page and it just.....doesn't. I'll click again to 'Change featured content,' and the box for the item I just checked will be unchecked.
It seems to be group-related, because the same group will have trouble over and over with the the item. The item and it's dependent element is definitely shared to the group, and can be accessed through the group's content...just not featured.