Im playing as Spain the french have launched a crusade against egypt. I let the Crusade go thru my land but it stopped in Castile and just stand there and every year it drain troops from my units and I really need them as a defens against the Almohad who now only put more and more troops in the neighbor province. Is it a bug or what???

Maybe it doesnt sound like a big problem for you but to me it is. Please anyone help me.