I'm having the exact same problem. I have Ascension, Tactics, Ease of Use, Item Upgrade, Soulafein, Valen, Unfinished Business, G3 Anniversary, Quest Pack mods, plus Baldurdash and the official patch. I get the first dialogue after killing Yaga Shura and then I never get another one.
I've heard these are scripted in Ascension, but I haven't been able to find a specific listing of when exactly each of these dialogues is supposed to take place. Does anybody know the specific events that trigger each dialogue? Is there a time component as well, after the event happens? Ctrl I isn't doing anything either, and this is right before the final battle. Can I force these last two conversations by futzing with specific global variables or timers via Shadow Keeper?
Sarevok figures significantly in my plan to win the final battle, and I really don't need him turning against me.
Thanks in advance.