I was facing this civ on a standart map size filled with 40 city states and 20 major civs. This mean that often the ai would pointlessly spamming settlers without space to settle, what may have created some anormalities... After reaching the classical age, Aurelian started to increase each turn the amount of time needed to process his turn, taking longer than all the others players togheter, until crash in a unavoidable way on his turn. I was using vanilla Rome, plus several modded civs that never rendered a problem with me before, plus Gaia's core mod wich also have not rendered any problem too. I would like to know if was an incompatible configuration with this civ and it may work on others scenarios, or it is a known bug.