Unexpected CDT !

[linhphap]

Very sorry to report another CTD because I really enjoy the BSM and highly praise the work by R@s and all the other members.
I started a new game with BSM 1.4 after a full reinstall under Vista.
I've just finished to fight off the natives, rebels and olvega gunmen in the "defend Ciudad de Oro" mission. Killing the last of them brings the autosave, end of battle, etc, and I can freely speak to the people, get access to inventory, the "leave" switch is blinking, ... : everything peacefull, but no entry in the log ("mission accomplished, time to go...") and in the strategic map, the town still appears in red. Trying to leave the city brings the CTD. Any ideas ?