In consts.py, at iNumCivilizations, the Aztecs and Argentians are swapped. They don't match the order in the XML.
There are a lot of text related embassy leftovers. Most won't be seen by the player. But some are. Embassies are still mentioned in the hint and RFC concepts.
The Brazilian UP is bugged. The sugar bonus applies to all companies which use sugar. That means the bonus also effects the Computer corporation.
(I mentioned this before with another bug related to the Brazilian UP. The other part is fixed, but this part isn't. This inclines me to think you forgot about this)