Settlers don't appear and two other things

[Lysandros]

Hallo, you have done very nice work! I started a Seleukid campaign (2.2g) after quite some time and found these issues:
1. I had a reproduceable CTD after being attacked by rebels while sieging Ankyra (still held by rebels, too). One or two rebel armies and Ankyra's garrison attacked my army; when I defeated them, CTD happened (I would have conquered the town immediately after winning because of wiping out Ankyra's garrison). I guess it is due to so many armies involved, when I retreated and destroyed the armies separate from conquering the town all was fine. I could maybe upload the savefile if it's of any use to you.
2. King Antiochos got a trait obviously reserved for Celtiberians. It was called "proven warrior values" or something similar. It gave +1 influence and +1 fertility, if I remember correctly. I can't find a charactertraits file so I cannot confirm its precise name. The trait perhaps was lost after a turn again, but I cannot say for sure as I reloaded a savegame and don't know whether he already had that trait then or got it afterwards.
3. Most annoying was that I got no settlers after turn 1. As I had never lost Antiocheia and its metropolis I expected new settlers on turn 17, but even on turn 19 or so I had neither the advisor popping up or the corresponding options appearing in the building menu. Am I missing something else?
4. A question: I have seen that governors have been given a slight culture conversion bonus, but neither the Poleis buildings nor the Military settlers buildings seem to give such a bonus anymore. Is that true? What exactly has an impact on culture conversion apart from governors (neighbours; small bonus according to your faction's main culture?)?