[0.98b Bug] Tax Office & Treasury Vault not buildable in towns

The .981 change log says, among other things:

Fixed the Market and Merchantcross Bazzar (so they are now buildable in towns)

Please check the Tax Office to see if it has the same problem.  I have a level 3 town and have the Cooperation tech for Tax Office, but it has not appeared in the build list.  I also have the Economics tech, which enables the Treasury Vault, but it is not buildable either, I presume because it requires the Tax Office first.

I can supply a saved game, if needed.