Chat view should be: the highest always is the one wheres the latest activity(chatting), right?
This is okay as you use the app (when u chat, chat rises to top in the list view), but when powering the device off and opening Yappari again, I have most of the group chats upper, then person chats and last(lowest) yet again a group chat. So order is not the same as before powering off.

I had the group dummy icons. the groups dont seem to take the display image automatically, unless you go to group and then group info -> then the picture is updated.