I have had three colonists training in my university in Cayenne. Two joined simultaneously ~10 turns ago, and the third joined ~6 turns ago. However, they will not graduate! For the past 3-4 turns, hovering over their pictures in the city screen tells me "Graduation in 0 turns", but the game never actually lets them *graduate*. There are specialists in the city, and I have more than enough gold to pay their graduation fees, so I can't determine the cause. I've attached the relevant save, the colonists in question are the three students in Cayenne.