CDT on turn 330 on small earth map

[Lord Iguan]

I've read a couple threads that say that memory overflow in late game is usually an issue with EUI on standard game. So I've reluctantly made a game on small earth map (6 civs and 18 city-states) and I still CDT at the same turn (330). I've tried loading a couple auto-saves earlier and still CDT during AI turns.