Bugs with private mode and checkin

A common friend of me and one of my friends has checked in on his home address in private mode. I (as a trusted friend) see his home address and the correct distance to him from me, my friend though only sees his last checkin, but the distance between them corresponds to the address he is at now. I have also noticed that checkins in privat mode doesn't show up at all for non-friends, even though they should see the city according to my preferences.