hi
I have same probs, inworld all ok, friends=X all,
in webbrowser https://secondlife.com/my/account Friends= x-4
and in https://my.secondlife.com friends=x-7.
at their profile i can ADD they as my friends but nothing happened.
Somebody delete me inworld but in webbrowser he was still in list.
I check it on differend pc and with smartphone, same problem.
best regards