Thanks for reporting that bug. I will fix in in the next update.
I found another bug: If their are too many patrol units more then 2 in a battle, The game will be unable to load the battle and to be playable.
Are you sure that you are using the latest update? Because I have fixed that bug 2-3 version ago and I could replicate the bug.
Update 7 version 9 from the 64bit
And I redownload the game and the bug is still exists.
By the way the game is not crashing, What happening is the game not loading the battle and stuck on a random percent less then 50%
Could you send me the map file please? Email: janniknickel.info@gmail.com
EDIT: I've found the bug. Thank you for report!