Final Fantasy Hacktics

Hi i've been playing this mod and I'm currently having an issue unlocking Dark Knight on Orlandeau. I've gone through all the replies and from what i see the conclusion is that for Dark Knight, Orlandeau just needs to have lv8 black mage and knight (not mastered) and get 20 crystallization. I've gotten way more than 20 crystallizations but Dark Knight still has not been unlocked..

Please help