dabberme: for the last few weeks i have had friend requests that I accepted but they do not show up on friends list. The same happens when I send one and it is accepted.
It has to do with the actual number of friends on your list. There's a bug where after you get 255, the ones added after that do what you described. 256 happens to be a very important number to a computer and it's low on the list of priorities as it's been that way for years. Pare the deadwood off your list.
A well designed way to rip you off and make more millions.