Reinforcement CTD

Sorry if there is already a specific thread for this problem, but recently I encountered a reinforcement CTD with 0.74 :

Heres the save: http://www.axifile.com?6705617

It's an early Koinon Hellenon campaign, and I am being assaulted by 2 Mak armies while im besieging a city. Thought you chappies would like to know.

I´ve had thoose too. Deleted the map.rwm file to get around it. One though CTD:ed 1st time but not the 2nd although no difference in achivements and outcome.

There's no adverse affects deleting the map.rwm file?