So I've posted about this a while back. I've had this issue where unless I go to my profile page, I do not get friends updates (people going on and offline). This bug was causing me to not see friends playing online in say, Mario Kart. I thought the new update fixed it, but as it turned out it did not. To make matters worse the new feature where it says someone is playing a game also did not work. Finally found a solution. The answer? Make a new profile. Literally had to make a brand new profile and now it functions normally. The only thing that has happened to my console out of the ordinary was I sent the console in. My console was not fixed, but my data was transferred to a new console. This seemingly bugged the profiles in a way that made them not receive active friends list updates. I made a new profile, linked my NNID, and now my list updates automatically, and the new features work.
TL: DR, if you sent your console to Nintendo, and got a new one with your old data, and now your friends acts weird, the fix is to delink your NNID and make a new profile. Lost all my data, but besides the mass coins in Mario Kart, I'll get it back.
TL: DR, if you sent your console to Nintendo, and got a new one with your old data, and now your friends acts weird, the fix is to delink your NNID and make a new profile. Lost all my data, but besides the mass coins in Mario Kart, I'll get it back.