I've noticed this myself, sometimes the building is deconstructed but there are examples that refuse to be demolished.

Thanks for the replies about the trade issue guys.

I've got a couple of questions about the game I'm hoping someone here might be able to answer. I was playing Rome and after advancing to Empire rank I found I couldn't recruit anymore Italian Foot but I could still recruit the other provincial troops, I'm wondering if this is intentional? Playing Ca...