Himeji Castle and Ten Tokyo Building Requirement

Hi,

I noticed yesterday that I can no longer get the Himeji Castle landmark building - I completed the "task" or "mission" or whatever it was to build ten tokyo homes and build the Himeji Castle.. YEARS AGO. Since completing that task / mission / annoying clipboard thing, I've demolished the Tokyo town homes in my capital because I don't want any in my capital. However, as of yesterday, I can no longer spend gold keys to get a new Himeji Castle. Why is this, if someone completes those missions, why do they still need to have the homes built in their capital to build that building?

Can you please fix this. Nobody should be blackmailed into having particular building types in their capital in order to build a building. Let the players design things the way they want. And I certainly don't want Tokyo town buildings in my capital. I don't like them.

THIS IS A SUGGESTION ABOVE ALL. NOBODY SHOULD BE FORCED TO KEEP CERTAIN BUILDING TYPES IN ORDER TO GET A LANDMARK BUILDING.