SCRIPTS are not working!

Here's another example: in the very first mission for the Necromancer, a patrol walks around, and at some point, one of the patrols stops in the MIDDLE of the ONLY passage leading to the map's exit and doesn't move anymore!!! I fast-forwarded two weeks in the game, and this patrol is just standing there ((( You can't pass, and you can't finish the mission (((

PEOPLE!!! and DEVELOPERS!!! What should I do??? What's the problem??? How can I solve it???