A bug in Dantooine at the siege Kunda (Star Wars: Knights of the Old Republic 2 - The Sith Lords)

Here such situation: if I take the side of Askola, I said they say everything is ready? Yes, attack with so-and-so of such entrance. Have you heard of the Jedi? Attack! Jedi, you lead the first wave. Here I destroy the militia with Jeronim, then I ascola arrives from the dialogue: Well, is everyone ready? (and again according to the same scheme as above, and it tells me to first wave I am, but destroy the militia with two entrances, all and nothing happens and when I try to go into the building, then wrote saying I can't leave the battlefield, although everything is destroyed). If I take the side of the Kunda, then after the destruction of the mercenaries, a black screen appears and I can use the power, switch between characters, but a black screen. What to do help