What could be causing it I wonder..all the XML seems fine.
It might be Revolutions...sigh..I was certain I fixed it..
Ill do some testing on my end. Kingpin let me know if you find anything on yours alright man?
Since deleting all the English cities and most of their units, the game has continued without a problem. I have a save just before the crash if you want a look at it.
EDIT: Ottoman macemen have the red bubble problem.