I'm taking notes as I play, but I'll just post what I have here so far in hopes of a quick hotfix in the near future.
If I find more bugs I'll just edit this post as opposed to making new ones.
Startpos:
First end turn is VERY slow. I imagine it's just from the scripts firing up, since every subsequent turn is fine.
Campaign Map:
Tech tree doesn't show any buildings, just the bonuses.
Faction-specific:
Basileion tou Kimmerikou Bosporou -
Level 2 barracks loses ability to make the troops from the level 1 barracks.
Toxotai Sindoi, Sindoi Hippotoxotai, Peltastai Euxinoi shown to require script. I assume this is because Pontus can also use those units, but only after they form the Pontic League.