liberate

Hi, I just liberated the city of Mecca from Greece who had captured it early in the game, but the leader does not show up. Neither does he show up on the next turn either. There appears to be a bug where if you have never met an early game civilization and then liberate them they do not show...

There has been a few threads on this and I was just playing a deity game where I liberated Brussels and on the next turn 7 emvoys were added by 3 Civs... So I thought I'd check the log file (Game_influence.csv) to see just how many they had used. This file shows the envoys (tokens)... the one on...

Ok so I just defeated Persia and he is now an vassal to me but when I enter the diplomatic screen it gives me no options to liberate his cities. Why is that? I have no cultural influence in the cities and they are 99% persian. It has worked before, what am I doing wrong?