First of all, i wanna say, that i love this mod, it is the beefed up version of Shogun 2 i always dreamed about.
I am not sure, if this problem is discussed somewhere:

When i capture a new castle and destroy the existing buildings, i am not able to build all the "normal" buildings afterwards. Most of the time, i only get like two options and some higher tier buildings that would cost around 100000.

Is there a solution for this? Thank you :)